• A Glossary of Computer Oriented Abbreviations and Acronyms
  • Version 96A
  • Copyright ©: 1989-1996.......Irving Kind.......All Rights Reserved
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           (2) Using the PgDn key.
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    	   buttons found at the top of each letter-group section.
           (4) START by clicking on any letter-group button below.
  • (Opening Page)
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  • (N) (O) (P) (Q) (R) (S) (T) (U) (V ) (W) (X) (Y) (Z)
  • (Appendix A) (Appendix B) (Appendix C)
         First compiled when I became frustrated while reading magazine
    articles, help wanted ads and equipment for sale brochures....all
    pertaining to computers....where the following Abbreviations and
    Acronyms were used and their meanings were either not known to me
    or were not immediately available.  I have actually seen (or have
    been told about) these combinations of letters used at one time or
    another in magazines, newspapers, handbooks, etc.  They apply to
    personal computers, multimedia, communications, programming,
    networking, name it.  This glossary can never be
    considered complete and that is why I now request your help.  Look
    over the definitions and let me have your feedback.  If you have
    ever seen letter combinations that you also did not understand,
    please drop me a note at the address below.  Also, if you find any
    errors, obsolete information or can suggest any additions or
    deletions, they will be most welcome.  If you can help, you have my
    thanks in advance.
         Keep BABEL on your computer or print it out and keep it on
    your desk.  Either way, you will have an outstanding reference.
    BABEL is revised three times a year, in January, May and September
    so as to keep you up-to-date.  You may download the latest version
    of BABEL from your favorite BBS or from the Internet.  See
    APPENDIX A for description of methods that may be used to obtain
    BABEL via the Internet.
         Letter groups followed with " * " were used before 1965.  At
    some of these, I have noted historical information.  For a brief
    interpretation of "smiley faces" and other informal expressions
    used in electronic mail messages, see APPENDIX B.  For a partial
    list of Country Domain Names, see APPENDIX C.
         BABEL is not public domain.  Permission is hereby granted to
    any individual or institution to redistribute BABEL; only in its
    entirety and provided it is distributed without ANY modification
    to include this opening page, copyright notices, version information
    and format.  It may not be incorporated into any other document, or
    published, or sold (for profit or otherwise), without my written
    permission.  Any question concerning these restrictions should be
    made in writing and mailed to address shown below.
         And please remember to ECAL.
                     Irving Kind            Internet:
                     c/o K & D
                     One Church Lane
                     Baltimore, MD  21208
    Jan 1996 version = BABEL96A       Jan 1997 version = BABEL97A
    May 1996 version = BABEL96B       May 1997 version = BABEL97B
    Sep 1996 version = BABEL96C       Sep 1997 version = BABEL97C


    (TOP) (DN to B) (BOTTOM)

    AA	  Auto Answer
    AAB	  All-to-All Broadcast
    AAL	  Asynchronous Transfer Mode Adaption Layer
    AAP	  Applications Access Point [DEC]
    AAS	  All-to-All Scatter
    AASP	  ASCII Asynchronous Support Package
    AAT       Average Access Time
    ABC    *  Atanasoff-Berry Computer  (First digital calculating
    	  machine that used vacuum tubes)
    ABEND	  Abnormal End
    ABI	  Application Binary Interface
    ABIOS	  Advanced BIOS
    ABIST	  Automatic Built-In Self-Test [IBM]
    ABLE      Adaptive Battery Life Extender
    ABR       Available Bit Rate
    ABRS      Automated Book Request System [British Library]
    ABS       Absolute
    ABT	  Abort
    ABTS      ASCII Block Terminal Services
    AC        Automatic Computer + Alternating Current
    ACC	  Accumulator
    ACD	  Automated Call Distribution +
    	  Automatic Call Distributor
    ACDI	  Asynchronous Communications Device Interface
    ACE	  Advanced Computing Environment [SCO] +
    	  Adverse Channel Enhancements [Microcom] +
           *  Automatic Computing Engine
    ACF	  Access Control Field + Advanced Communications Function
    ACH	  Automated Clearing House
    ACIAS	  Automated Calibration Interval Analysis System
    ACIS	  American Committee for Interoperable Systems
    ACK	  Acknowledgment
    ACL	  Access Control List
    ACM	  Association for Computing Machinery
    	  Audio Compression Manager [Microsoft]
    ACMS	  Application Control Management System
    ACP	  Ancillary Control Program + Auxillary Control Process
    ACROSS	  Automated Cargo Release and Operations Service System
    ACS	  Access + Access Control Set + Access Control System +
    	  Asynchronous Communication Server
    ACTS	  Automated Computer Time Service
    ACTT	  Advanced Communication and Timekeeping Technology [Seiko]
    ACU	  Automatic Calling Unit
    A/D	  Analog to Digital
    ADA	  Automatic Data Acquisitions +
    	  (Programming Language named after Augusta Ada Lovelace)
    ADB	  Apple Desktop Bus
    ADC	  Adaptive Data Compression (protocol) [Hayes] +
    	  Add with Carry + Analog to Digital Converter
    ADCCP	  Advanced Data Communication Control Procedures
    ADD	  Automatic Document Detection [WordPerfect]
    ADF	  Automatic Document Feeder
    .ADF	  Adapter Description File (file name extension) [IBM]
    ADI	  AutoCad Device Interface (driver)
    ADL	  Address Data Latch
    ADLAT	  Adaptive Lattice Filter
    ADLC	  Adaptive Lossless Data Compression [IBM] +
    	  Asynchronous Data Link Control
    ADMACS    Apple Document Mangagement And Conrol System
    ADMD      Administrative Management Domain [X.400]
    .ADN	  Add In Utility (file name extension) [Lotus 1-2-3] [LDC]
    ADP	  Automatic Data Processing
    ADPCM	  Adaptive Differential Pulse Code Modulation
    ADR	  Address
    ADS	  Application Development Solutions [AT&T] +
    	  Application Development System +
    	  Automatic Distribution System
    ADSC	  Address Status Changed
    ADSL	  Asymmetrical Digital Subscriber Line
    ADSR	  Attack, Decay, Sustain, Release
    ADT	  Application Data Types
    ADU	  Automatic Dialing Unit
    AE	  Above or Equal
    AEB	  Analog Expansion Bus [Dialogic]
    AF	  Auxiliary carry Flag
    AFA       Accelerated File Access
    AFC       Automatic Font Change
    AFD	  Automatic File Distribution
    AFII	  Association for Font Information Interchange
    AFIRM     Automated Fingerprint Image Reporting and Match
    AFIS      Automated Fingerprint Identification System
    .AFM	  Adobe Font Metrics (file name extension) [Adobe Systems]
    AFP	  Appletalk Filing Protocol [Macintosh]
    AFS	  Andrew File System (protocols)
    AFTP      Anonymous File Transfer Protocol
    AGC       Automatic Gain Control
    AGRAS	  Antiglare-Antireflective-Antistatic
    AI	  Analog Input + Artificial Intelligence
    AIA	  Applications Integration Architecture [DEC]
    AIC	  AIXwindows Interface Composer [IBM]
    AIF	  Audio Interchange Format
    AIIM	  Association for Information and Image Management
    AIN	  Advanced Intelligent Network [Bell Atlantic]
    AISB	  Association of Imaging Service Bureaus
    AISP	  Association of Information Systems Professionals
    AIX	  Advanced Interactive Executive [IBM]
    ALC	  Arithmetic and Logic Circuits + Automatic Level Control
    ALE	  Address Latch Enable
    ALGOL	  Algorithmic Oriented Language (see IAL)
    ALIBI	  Adaptive Location of Internetworked Bases of Information
    ALIWEB	  Archie Like Indexing in the Web [Internet]
    ALN       Asynchronous Learning Network
    ALR       Advanced Logic Research, Inc.
    ALT	  Alternate (mode)
    ALT.      Alternate lifestyle [USENET Newsgroup Category]
    ALU       Arithmetic Logic Unit
    AMANDDA   Automated Messaging and Directory Assistance
    AMD	  Active Matrix Display + Advanced Micro Devices, Inc.
    AMI       American Megatrends, Inc.
    AMMA      Advanced Memory Management Architecture [Everex Systems]
    AMPS	  Advanced Mobile Phone Service
    ANCOVA	  Analysis of Covariance
    ANI	  Automatic Number Identification
    .ANI      Animated Cursor (file name extension) [Microsoft]
    ANN       Artificial Neural Network
    .ANN      Annotations (file name extension) [IBM]
    ANOVA	  Analysis Of Variance
    ANSI	  American National Standards Institute
    AO	  Analog Output
    AOCE	  Apple Open Collaboration Environment
    AOE	  Application Operating Environment [AT&T]
    AOL	  America Online
    AOS	  Add Or Subtract
    AP	  Adjunct Processor + Application Processor
    A/P	  Accounts Payable
    APA	  Adaptive Packet Assembly +
    	  All Points Addressable +
    	  Arithmetic Processing Accelerator
    APAR	  Authorized Program Analysis Report [IBM]
    APAREN	  Address Parity Enable [IBM]
    APCUG	  Association of PC User Groups
    API       Application Program Interface
    APIC	  Advanced Programmable Interrupt Controller [Intel]
    APIS      Advanced Passenger Information System
    APL       A Programming Language (Mathematics)
    APM	  Advanced Power Management [IBM OS2]
    .APP	  Application (file name extension) [R:Base]
    APPC	  Advanced Program-to-Program Communications [IBM]
    APPI	  Advanced Peer-to-Peer Internetworking
    APPN	  Advanced Peer-to-Peer Networking [IBM]
    APRP      Adaptive Pattern Recognition Processing
    APS       Asynchronous Protocol Specification
    APSE	  ADA Programming Support Environment
    APT	  Address Pass Through + Advanced Parallel Technology
    	  Automatically Programmed Tools
    A/R	  Accounts Receivable
    ARA       AppleTalk Remote Access
    ARAG	  Antireflective-Antiglare
    ARAS	  Antireflective-Antistatic
    .ARC	  Archive (file name extension)
    ARCA	  Advanced RISC Computing Architecture
    ARCnet	  Attached Resource Computer Network
    .ARJ	  Compressed File (file name extension) [Jung]
    ARL	  Adjusted Ring Length
    ARLL	  Advanced Run Length Limited
    ARM	  Advanced RISC Machine (processor) +
    	  Annotated Reference Manual +
    	  Asynchronous Response Mode
    ARMA	  Association of Records Managers and Administrators
    ARP	  Address Resolution Protocol [Novell]
    ARPANET   Advanced Research Projects Agency Network
    ARPL	  Adjust Requested Privilege Level
    ARTA      Apple Real Time Architecture
    ARTIC     A Real-Time Interface Copressor [IBM]
    ARTS	  Asynchronous Remote Takeover Server
    ARTT	  Asynchronous Remote Takeover Terminal
    ARQ	  Automatic Repeat Request
    ARU	  Audio Response Unit
    AS	  Autonomous System [Internet]
    ASAP	  As Soon As Possible +
    	  Automatic Switching And Processing
    AS3AP	  ANSI SQL Standard Scalable and Portable
    .ASC	  ASCII text (file name extension)
    ASCII	  American Standard Code for Information Interchange
    ASIC	  Application-Specific Integrated Circuit
    ASIT	  Advanced Security and Identification Technology
    ASL	  Adaptive Speed Levelling
    .ASM	  Assembler Source Language (file name extension)
    ASMP      Asymmetric Multprocessing
    ASN       Autonomous System Number
    ASP       Association of Shareware Professionals
    ASPI	  Advanced SCSI Programming Interface [Adaptec]
    ASPS	  Advanced Signal Processing System
    ASR	  Address Space Register + Automatic Send-Receive +
    	  Automatic Speech Recognition
    AST	  AST Research, Inc. (named from first initials of the
    	  founders: Albert Wong, Safi Qureshey, Thomas Yuen)
    ASYNC	  Asynchronous
    AT	  Advanced Technology + Attention
    ATA	  Advanced Technology Attachment
    ATDP	  Attention Dial Pulse
    ATDT	  Attention Dial Tone
    ATE	  Automated Test Equipment
    ATG	  Advanced Technology Group
    ATH	  Attention Hang-Up (Modem command)
    ATM	  Adobe Typeface Manager + Asynchronous Transfer Mode +
    	  Automated Teller Machine
    ATPS	  AppleTalk Printing Services [Macintosh]
    ATR	  Automatic Terminal Recognition
    ATS	  Administrative Terminal System +
    	  Apple Terminal Services
    AT&T	  American Telephone and Telegraph
    ATTN	  Attention
    ATTRIB	  Attribute (also ATR)
    ATZ	  Attention Restore configuration profile from
    	  nonvolatile RAM (Modem command)
    .AU	  Audio (file name extension)
    AUDIT	  Automated Data Input Terminal
    AUI	  Attachment Unit Interface
    AUP	  Acceptable Use Policy [Internet]
    AUTO	  Automatic
    AUTOEXEC  Automatic Execution
    AUX	  Auxiliary + (First Serial Port)
    AV        Audio/Video + Audiovisual
    AVA       Audio Visual Authoring [IBM]
    AVC	  Audio Visual Connection [IBM]
    AVG	  Average
    AVI       Audio Visual Interleave [Microsoft]
    AVR	  Automatic Voice Recognition
    AWG	  American Wire Gage
    AWK	  (Unix language named after its authors...
    	  Al Aho, Peter Weinberger and Brian Kernighan)
    AWS	  Advanced Workstations and Systems (group) [IBM]
    AX	  Architecture Extended + Automatic Transmission


    (TOP) (UP to A) (DN to C) (BOTTOM)

    BAK	  Binary Adaptation Kit [Microsoft]
    .BAK	  Backup (file name extension)
    BAL	  Basic Assembly Language
    BALUN	  Balanced Unbalanced (device)
    BAM	  Boyan Action Module
    BARTS	  Bell Atlantic Regional Timesharing
    .BAS	  Basic Language (file name extension)
    BASIC	  Beginner's All-purpose Symbolic Instruction Code
    BASM	  Built-In Assembler
    BAT	  Block Address Translation
    .BAT	  Batch Processing (file name extension)
    BBS	  Bulletin Board System
    BCC	  Block Check Character
    BCC:	  Blind Carbon Copy
    BCD	  Binary Coded Decimal
    BCL	  Batch Command Language
    BCN	  Beacon
    BCP	  Bulk Copy Program
    BCPL	  Basic Computer Programming Language
    BCR	  Byte Count Register
    BCS       Bar Code Sorter
    BDA       Bios Data Area
    BDOS	  Basic Disk Operating System
    BDR       Bus Device Request
    BE        Below or Equal
    BEL	  Bell
    BELLCORE  Bell Communications Research
    BERT	  Bit Error Rate Test/Tester
    BF	  Bad Flag
    B/F	  Background/Foreground
    BFF	  Binary File Format [IBM]
    BFT	  Binary File Transfer
    BGA       Ball Grid Array
    BGE       Branch if Greater or Equal
    .BGI	  Borland Graphic Interface (file name extension)
    BGP	  Border Gateway Protocol
    BGT	  Branch if Greater Than
    BHI	  Branch if Higher
    BHIS	  Branch if Higher or Same
    BI	  Binary Input
    .BIB	  Bibliography (file name extension)
    BiDi	  Bi-Directional
    BIM	  Beginning of Information Marker
    .BIN	  Binary (file name extension)
    BINAC	* Binary Automatic Computer
    BIOS	  Basic Input/Output System
    BIS	  Business Information System
    BISDN	  Broadband Integrated Services Digital Network
    BIST	  Built-In Self-Test
    BiSYNC	  (See BSYNC)
    BIT	  Binary Digit
    BITNET	  Because It's Time Network
    BITNIC	  Bitnet Network Information Center
    BIU	  Bus Interface Unit
    BIX	  Byte Information Exchange (BBS)
    BIZ.      Business [USENET Newsgroup Category]
    .BK!      Backup (file name extension) [WordPerfect]
    BKSP	  Backspace
    BL	  Backlit
    BLAST	  Blocked Asynchronous Transmission (protocol)
    	  [Communications Research Group]
    .BLD	  BASIC Bload Graphics (file name extension)
    BLE	  Branch if Less or Equal
    BLER      Block Error
    BLK       Block
    BLMC	  Buried Logic Macrocell
    BLOB	  Binary Large Object
    BLOS	  Branch if Lower Or Same
    BMI	  Branch if Minus
    BMIC	  BusMaster Interface Controller [Intel]
    BMP       Basic Mapping Support + Batch Message Processing Program
    .BMP	  Bitmap Picture (file name extension)
    BNC	  Bayonet Neill-Concelman (connector used with
    	  coaxial cable invented by Mr. Neill-Concelman)
    BNE	  Branch if Not Equal
    BNS       Backbone Network Service
    BO        Binary Output
    BoB	  Break-out Box
    BOC       Basic Operator Console
    BOM       Beginning Of Message
    BOOTP	  Bootstrap Protocol [Internet]
    BOPS      Billion Operations Per Second
    BORPQU    Borland Pro Quattro
    BORQU	  Borland Quattro
    BOS	  Basic Operating System
    BOT	  Beginning Of Table + Beginning of Tape
    BP	  Base Pointer
    BPB	  BIOS Parameter Block
    BPI	  Bits Per Inch
    BPL	  Branch if Plus
    BPS	  Bits Per Second + Bytes Per Second
    BR	  Bad Register
    BRGC	  Binary Reflected Gray Code
    BRI	  Basic Rate Interface + Brain Response Interface
    BS        Backspace
    BSAM      Basic Sequential Access Method
    BSC	  Binary Synchronous Communication
    .BSC	  Boyan Script (file name extension) [Boyan Communications]
    BSCS	  Bachelor of Science (Degree) in Computer Science
    BSD	  Berkely Software/Standard Distribution
    BSF	  Bit Scan Forward
    BSI	  British Standards Institute
    BSR	  Bit Scan Reverse
    BSS	  Block Started by Symbol
    BSV	  BASIC Bsave Graphics (file name extension)
    BSY	  Busy
    BSYNC	  Binary Synchronous Communications (protocol)
    BT	  Bit Test
    BTAM	  Basic Telecommunications Access Method [IBM]
    BTB	  Branch Target Buffer
    BTC	  Bit Test and Complement
    BTOA	  Binary To ASCII
    BTP	  Batch Transfer Program
    BTR	  Bit Test and Reset
    BTS	  Bit Test and Set
    BU	  Branch Unit
    BUBL      Bulletin Board for Libraries [Janet]
    BUF       Buffer
    BWM	  Block-Write Mode
    B2X	  Binary To Hexadecimal [REXX]
    BYTE	  Binary Element String


    (TOP) (UP to B) (DN to D) (BOTTOM)

    C	  C Programming Language
    .C	  C source code (file name extension) [C]
    CA	  Collision  Avoidance
    CAD	  Computer Aided Design
    CADD	  Computer Aided Design and Drafting
    CADE      Client/server Application Development Environment
    CAE       Client Application Enabler +
              Common Applications Environment + Computer Aided Engineering
    CAG	  Column Address Generator
    CAI	  Computer Aided Instruction
    CAL	  Calendar + Computer Aided Learning
    CAM	  Common Access Method + Computer Aided Manufacturing +
    	  Contents Addressable Memory
    CAN	  Cancel
    CAP       Carrierless Amplitude and Phase-Modulation +
              Central Arbitration Point +
    	  Communication Application Platform +
    	  Computer Aided Publishing
    .CAP	  Capture (file name extension)
    CAPD	  Computing To Assist Persons With Disabilities [Johns
    	  Hopkins University]
    CAPS	  Capitals (Upper Case Letters) +
    	  Cassette Programming System
    CARL	  Colorado Alliance of Research Libraries [Internet]
    CAS	  Column Address Select +
    	  Communications Application Specification +
    	  Computer Aided Styling
    CASE	  Computer Aided Software Engineering
    CASL	  Crosstalk Application Scripting Language [DCA]
    CASS	  Computer Assisted Search Service
    CASSIS	  Classified and Search Support Information System
    CAT	  Computer Aided Testing + Computer Aided Tomography +
    	  Computer Aided Transcription + Concatenate
    .CAT	  Catalog (file name extension)
    CATS	  Computer Assisted Training System
    CAT SCAN  Computerized Axial Tomography Scan
    CATV      Community Antenna Television (this was the original
              name for what is now known as Cable TV)
    CAU	  Controlled Access Unit
    CAV	  Constant Angular Velocity
    CBC	  Cipher Block Chaining
    CBCR	  Channel Byte Count Register
    CBEMA	  Computer and Business Equipment
    	  Manufacturers Association
    CBGA	  Ceramic Ball Grid Array
    CBI	  Computer Based Instruction
    CBL	  Computer Based Learning
    .CBL	  COBOL source code (file name extension)
    CBMS	  Computer-Based Mail System
    CBR	  Constant Bit Rate
    CBT	  Computer Based Training
    CBW	  Convert Byte to Word
    CBX	  Computer-Controlled Branch Exchange
    CC	  Cluster Controller
    CC:	  Carbon Copy
    CCD	  Charged-Coupled Device
    CCFT	  Cold Cathode Fluorescent Tube
    CCI	  Common Client Interface
    CCITT     Comite Consultatif International Telegraphique et Telephonique/
              Consultative Committee for International Telegraph and Telephone
    CCL       Connection Control Language
    CCP       Console Command Processor
    CCS	  Common Command Set + Common Communications Services +
              Common Communications Support +
    	  Continuous Composite Servo
    .CCS      Color Calibration System (file name extension)
    CD        Carrier Detect + Change Directory +
    	  Collision Detection + Color Display + Compact Disk
    C/D	  Control Data
    C2D	  Character To Decimal [REXX]
    CDA	  Compound Document Architecture [DEC]
    CDC	  Control Data Corporation
    CD_CHRDY  Card Channel Ready [IBM]
    CD-DA	  Compact Disk -Digital Audio
    CDDI	  Copper Distributed Data Interface
    CDE	  Common Desktop Environment + Complex Data Entry
    .CDF	  Comma Delimited Format (file name extension)
    CDFS	  Compact Disc File System [Microsoft]
    CD+G	  Compact Disk plus Graphics
    CD-I	  Compact Disk - Interactive
    CDIA      Certified Document Imaging Architect
    CDL	  Computer Design Language
    CDMA	  Code Division Multiple Access
    CDMF      Commercial Data Masking Facility [IBM]
    CD-MO     Compact Disk - Magneto Optical
    CDOS      Concurrent Disk Operating System
    CDPD      Cellular Digital Packet Data
    CDR	  Call Detail Record + Call Detail Recording
    CD-R	  Compact Disk - Recordable
    CD-RDx	  Compact Disk - Read Only Memory Data Exchange Standard
    CDRL	  Contract Data Requirements List
    CD-ROM	  Compact Disk - Read Only Memory
    CD-RTOS   Compact Disk - Real Time Operating System
    CDS	  Current Directory Structure
    .CDT      Corel Draw Template (file name extension)
    CD-V      Compact Disk - Video
    CD-WO	  Compact Disk - Write Once
    .CDX	  Compound Index (file name extension) [Fox Pro]
    CD-XA	  Compact Disk - Extended Architecture
    CE	  Cache Enable + Chip Enable + Collision Elimination +
    	  Convert Enable
    CEG	  Continuous Edge Graphics
    CEI	  Conducted Electromagnetic Interference
    CEMS	  Constituent Electronic Mail System
    CEOP      Conditional End Of Page
    CERN      The European Particle Physics Laboratory (initials
    	  originally from Conseil European pour la Recherche Nucleaire)
    CERT	  Computer Emergency Response Team
    CFB	  Cipher Feedback + Configurable Function Block
    .CFG	  Configuration (file name extension)
    CFR       Computerized Facial Recognition
    CFS       Common File System
    CFV       Call For Votes [Bitnet]
    CGA	  Color Graphics Adapter
    CGE       Common Graphics Environment
    CGI       Common Gateway Interface + Computer Generated Images +
    	  Computer Graphics Interface
    .CGM	  Computer Graphics Metafile (file name extension) +
    	  Graph (file name extension) [Lotus 1-2-3] [LDC]
    CHAP	  Challenge Authentication Protocol (protocol)
    CHAR	  Character
    CHAT	  Conversational Hypertext Access Technology [Internet]
    CHCK	  Channel Check
    CHCP	  Change Code Page
    CHDIR	  Change Directory
    CHFN	  Change Finger [Unix]
    CHGRP	  Change Group
    .CHK	  CHKDSK (file name extension)
    CHKDSK	  Check Disk
    CHMOD	  Change Mode
    CHOWN	  Change Owner
    CHP	  Chapter
    CHR	  Character
    CHRP	  Common Hardware Reference Platform
    CHS	  Cylinder Head Sector
    CIA	  Current Instruction Address
    CICS/VS   Customer Information Control System/
    	  Virtual Storage [IBM]
    CID	  Configuration/Installation/Distribution
    CIDR	  Classless Interdomain Routing
    CIF       Common Interchange/Intermediate Format +
              Customer Information Feed
    CIM       CompuServe Information Manager +
    	  Computer Integrated Manufacturing
    CIO	  Chief Information Offier
    CIOCS	  Communication Input/Output Control System
    CIP	  Command Interface Port
    CIR       Committed Information Rate
    CIRC      Circular Reference
    CIS	  Card Information Structure + Client Information System +
    	  CompuServe Information Service +
              Computer Information Systems + Contact Image Sensor +
              Customer Information System
    CISC      Complex Instruction Set Computing
    CIT	  Computer-Integrated Telephony
    CIX	  Commercial Internet Exchange +
    	  Compulink Information Exchange
    CJLI	  Command Job Language Interpreter
    CKD	  Count Key Data (device)
    CLAR	  Channel Local Address Register
    CLASS	  Client Access to Systems and Services +
    	  Cooperative Library Agency for Systems and Services
    CLC	  Clear Carry Flag
    CLD	  Clear Direction Flag
    CLI	  Call-Level Interface + Clear Interrupt Flag +
    	  Command Line Interface
    CLIST	  Command List
    CLK	  Clock
    CLNP	  Connectionless Network Protocol
    CLP       Cell Loss Priority + Constraint Logic Programming
    .CLP      Clipboard (file name extension) [Windows]
    CLS	  Clear Screen
    CLTP	  Connectionless Transport Protocol
    CLTS	  Clear Task Switch Flag
    CLUI	  Command Line User Interface
    CLUT	  Color Look-Up Table [Macintosh]
    CLV	  Constant Linear Velocity
    CM	  Centimeter + Control Mark + Corrective Maintenance
    CMA	  Concert Multi-thread Architecture
    CMC	  Common Mail Calls + Common Messaging Calls +
    	  Communication Mangement Configuration +
    	  Complement Carry Flag +
    	  Computer-Mediated Communication [Internet]
    .CMD	  Command (file name extension)
    CMF	  Creative Music Format
    CNIDR	  Clearinghouse for Network Information and
    	  Discovery and Retrieval [Internet]
    CMIP	  Common Management Information Protocol
    CMIS	  Common Management Information Services/System
    CML	  Conceptual Modelling Language +
    	  Computer Managed Learning + Current Mode Logic
    CMMS	  Computerized Maintenance Management Software
    CMMU	  Cache/Memory Management Unit [Motorola]
    CMOS	  Complementary Metal-Oxide Semiconductor
    CMOV      Conditional Move
    CMP       Compare + Computer
    CMPS	  Compare word String
    CMS	  Code Management System + Compiler Monitor System +
    	  Conversation Monitor System
    CMVC      Configuration Management Version Control [IBM]
    CMW       Compartmented Mode Workstation
    CMY	  Cyan-Magenta-Yellow (color model)
    CMYK	  Cyan-Magenta-Yellow-Black (color model)
    CNA	  Certified NetWare Administrator [Novell]
    CNAPS     Co-Processing Node Architecture for Parallel Systems
    CNC       Computerized Numerical Control
    CNE	  Certified NetWare Engineer
    .CNF	  Configuration (file name extension)
    CNG	  Calling (tone)
    CNI       Certified Novell Instructor [Novell]
    CNIDR     Clearinghouse for Networked Information and Retrieval
    CNN       Composite Network Node
    CNSS      Core Nodal Switching Subsystem [Internet]
    .CNT      Contents (file name extension)
    CNV       Conventional (pertaining to Memory)
    CNVT	  Convert
    CNX	  Certified Network Expert
    CO	  Central Office + Command Output + Convert Out
    COB	  Chip-On-Board
    .COB	  COBAL source code (file name extension)
    COBOL     Common Business-oriented Language (See HLL)
    .COD	  Code List (file name extension)
    CODASYL * Conference on Data System Languages (Group that
    	  designed COBOL)
    CODE      Client-Server Open Development Environment
    CODEC     Coder/Decoder + Compression/Decompression
    COEM	  Commercial Original Equipment Manufacturer
    COFF	  Common Object File Format [Unix]
    COGO	  Coordinate Geometry (Programming Language)
    COL	  Collision + Computer Oriented Language
    COLD	  Computer Output to Laser Disk
    COLL	  Collision
    COM	  Commercial (organization Domain name) [Internet] +
    	  Common Object Model [Microsoft]
    .COM	  Command (file name extension)
    COM1	  First serial Port (asynchronous port)
    COM2	  Second serial Port
    COM3	  Third serial Port
    COM4	  Fourth serial Port
    COMDEX	  Computer Dealers Exposition
    COMET	  Cornell Macintosh Terminal Emulator
    COMP	  Compare + Communications
    COMP.     Computers [USENET Newsgroup Category]
    COMSAT    Communications Satellite Corporation
    CON	  Console (includes Keyboard and Screen)
    COND      Condition
    CONFIG    Configuration
    CONS	  Connection-Oriented Network Service
    CONTONE   Continuous Tone
    CORBA	  Common Object Request Broker Architecture
    CoREN	  Corporation for Research and Enterprise Network
    COS	  Compatible Operating System
    COSE	  Combined Office Standard Environment +
              Common Open Software/Systems Environment
    COSMIC    Computer Software Management and Information
    	  Center [NASA]
    COSMOS	  Computer System for Mainframe Operations
    COTS	  Commercial Off-The-Shelf
    CP	  Copy Protected
    CPA	  Certified Public Accountant
    CPC	  Constant Point Calculation
    CPCS	  Check Processing Control System [IBM]
    CPE	  Central Processing Element +
    	  Customer Premise Equipment +
    	  Customer Provided Equipment
    .CPE      Cover Page (file name extension)
    CPG       Clock Pulse Generator
    CPI	  Characters Per Inch + Clock Per Instruction +
    	  Common Programming Interface [IBM]
    .CPI	  Code Page Information (file name extension) [MS-DOS]
    CPI-C	  Common Programming Interface for Communications [IBM]
    CPL	  Current Privilege Level
    .CPL      Control Panel (file name extension)
    CP/M      Control Program for Microcomputers
    CPS	  Characters Per Second + Cycles Per Second
    CPT	  Command Pass Through
    CPU	  Central Processing Unit
    CR	  Carriage Return
    CRAM	  Cyberspatial Reality Advancement Movement
    CRC	  Cyclic Redundancy Check
    .CRD	  Cardfile (file name extension)
    CREN	  Computer Research Education Network +
    	  Corporation for Research and Education Networking
    CRF	  Cable Retransmission Facility + Cross Reference File
    CRI	  Color Reproduction Indices
    CR/LF	  Carriage Return/Line Feed
    CROM	  Control Read Only Memory
    CRT	  Cathode Ray Tube
    CRTC	  CRT Controller
    CS	  Chip Select + Clear to Send + Code Segment
    C/S	  Client/Server
    CSA	  Calendaring and Scheduling API [IBM]
    CSAR	  Channel System Address Register
    CSD	  Corrective Service Diskette [IBM]
    CSDS	  Packet Switched Data Service
    CSE	  Certified System Engineer
    CSFI      Communication Subsystem For Interconnection
    CSG       Constructive Solid Geometry +
    	  Consulting Services Group [Lotus]
    CSI	  Command Sequence Introducer + CompuServe Incorporated
    CSL	  Computer Sensitive Language
    CSLIP	  Compressed Serial Line Interface Protocol [Internet]
    CSM	  Communications Services Manager
    CSMA/CA   Carrier Sense Multiple Access/with Collision Avoidance
    CSMA/CD   Carrier Sense Multiple Access/with Collision Detection
    CSMS      Customer Support Management System
    CSN       Card-Select Number
    CSNET	  Computer Science Network
    CSO	  Central Services Organization
    CSP	  Certified Systems Professional +
    	  Commercial Subroutine Package +
    	  CompuCom Speed Protocol [CompuCom]
    CSPDN	  Circuit Switched Public Data Network
    CSS	* Continuous System Simulator (Language)
    CSS	  Contact Start-Stop
    CSSM      Client-Server Systems Management [IBM]
    CSTA      Computer-Supported Telephony Applications
    CSU	  Channel Service Unit
    CSV       Comma-Separated Value/Variable +
    	  Common Services Verbs (interface) [Microsoft]
    C&T	  Chips and Technologies
    CTB	  Cipher Type Byte
    CTC       Channel To Channel
    CTCP      Client-To-Client Protocol
    CTI       Computer-Telephone Integration
    CTOS      Computerized Tomography Operating System +
              Convergent Technologies Operating System
    CTPA	  Coax-to-Twisted-Pair Adapter
    CTRL	  Control
    CTS	  Clear To Send
    CTSS	* Compatible Time Sharing System
    CUA	  Common User Access [IBM]
    CUB	  Cursor Backward
    CUD	  Cursor Down
    CUE	  Custom Updates and Extras (card) [Egghead Software]
    CUF	  Cursor Forward
    CUI	  Character-Oriented User Interface +
    	  Common User Interface [IBM]
    CUP	  Cursor Position
    CUPID	  Completely Universal Processor I/O Design [AST]
    .CUR	  Cursor (file name extension)
    CUT	  Control Unit Terminal
    CUTE	  Clarkston University Terminal Emulator
    CUU	  Cursor Up
    CVF	  Compressed Volume File
    CVGA      Color Video Graphics Array
    CVIA	  Computer Virus Industry Association
    CVT	  Convert
    CVW	  CodeView for Windows
    CWD	  Convert Word to Double Word +
    	  Change Working Directory [Internet]
    CWIS	  Campus Wide Information Service/System [Internet] +
    	  Community Wide Information Service/System [Internet]
    C2X	  Character To Hexadecimal [REXX]
    CYL	  Cylinder
    CYMK	  Cyan-Yellow-Magenta-Black (color model)


    (TOP) (UP to C) (DN to E) (BOTTOM)

    D/A	  Digital to Analog
    DAA	  Data Access Arrangement +
    	  Decimal Adjust for Addition
    DAC	  Data Acquisition and Control +
    	  Digital to Analog Converter
    DAD	  Desktop Application Director [Borland]
    DAI	  Distributed Artificial Intelligence
    DAL	  Data Access Language [Apple Computer] +
    	  Disk Access Lockout
    DAM	  Data Acquisition and Monitoring
    DAO	  Data Access Object [Microsoft]
    DAP	  Data Access Protocol [DEC] +
    	  Developer Assistance Program
    DARI	  Database Application Remote Interface [IBM]
    DART      Digital Audio Reconstruction Technology
    DAS       Decimal Adjust for Subtraction +
    	  Dual-Attached Station
    DASD	  Direct Access Storage Device
    DAT	  Digital Audio Tape + Disk Array Technology
    .DAT	  Data (file name extension)
    DATACOM   Data Communications
    DAV       Digital Audio-Video
    dB        Decibel
    DB	  Data Base + Data Buffer
    dBA	  Adjusted Decibel
    DBCS      Delivery Bar Code Sorter + Double-Byte Character Set
    .DBF	  Database (file name extension)
    DBIS      Dun & Bradstreet Information Services
    DBM       Data Base Manager
    DBMS	  Data Base Management System
    DBS	  Data Base Server
    DB2	  Database 2
    DC	  Data Collection + Data Communication + Data Control +
    	  Device Control + Direct Current
    D2C	  Decimal To Character [REXX]
    DCA	  Digital Communications Associates +
    	  Document Content Architecture [IBM]
    DCAF	  Distributed Console Access Facility [IBM]
    DCAM	  Direct Chip Attach Module
    DCB       Device Control Block + Disk Coprocessor Board [Novell]
    DCC	  Digital Command Control + Digital Compact Cassette +
              Direct Client Connection + Display Combination Code
    DCD	  Data Carrier Detect
    DCE       Data Circuit-Terminating Equipment +
              Data Communications Equipment +
    	  Distributed Computing Environment [OSF] +
    	  Distributed Computing Equipment
    DCF	  Data Communication Facility [IBM] +
    	  Data Compression Facility +
    	  Data Count Field [IBM] +
    	  Driver Configuration File [Lotus]
    DCI	  Display Control Interface
    DCL       Data Control Language + Declaration +
              DEC Command Language [DEC] +
    	  Device Clear + Digital Control Logic +
    	  Digital Command Language [Digital]
    DCS	  Data Collection System + Data Control System +
    	  Desktop Color Separation
    DCT	  Discrete Cosine Transform
    .DCT	  Dictionary (file name extension)
    DD	  Day + Digital Display + Double Density
    DDA       Distributed Data Access + Domain-Defined Attribute
    DDB	  Device Dependent Bitmap
    DDC       Digital Data Channel [VESA] + Display Data Channel
    DDCMP	  Digital Data Communications Message Protocol [DEC]
    DDC1      Display Data Channel One
    DDCS      Distributed Database Connection Services [IBM]
    DDD	  Direct Distance Dialing
    DDE	  Direct Data Entry + Dynamic Data Exchange [Microsoft]
    DDEML	  Dynamic Data Exchange Manager Library [Microsoft]
    DDF	  Display Data Channel + Dynamic Data Formatting [IBM]
    DDI       Device Driver Interface
    DDK       Device Driver Kit [Microsoft Windows]
    DDL	  Data Definition Language + Data Description Language
    DDM	  Distributed Data Management
    DDN	  Defense Data Network
    DDS	  Digital Dataphone Service [AT&T] + Design Data Sheet +
    	  Digital Data Storage + Distributed Database Services
    DE        Device End
    DEC       Decrement + Device Clear + Digital Equipment Corporation
    DECNET    Digital Equipment Corporation Networking (protocol)
    DEF       Desktop Functional Equivalent [Compaq]
    .DEF	  Definitions + Defaults (file name extensions)
    DEFRAG	  Defragment
    DEK	  Data Encryption Key
    DEL	  Delete
    DELSTR	  Delete String [REXX]
    .DEM	  Demonstration (file name extension)
    DEN       Document Enabled Networking [Novell-Xerox]
    DES       Data Encryption Standard + Data Entry Sheet
    .DES	  Description (file name extension)
    DET	  Device Execute Trigger
    DEV	  Device
    DF	  Data Field + Destination Field + Device Flag +
    	  Double Flag
    DFC	  Data Flow Control
    DFM	  Design For Manufacturability [IBM]
    DFS	  Distributed File System
    DFSMS     Data Facility Storage Management Subsystem [IBM]
    DFT       Design For Testability + Diagnostic Funtion Test +
    	  Discrete Fourier Transform +
    	  Distributed Function Terminal
    DFU	  Data File Utility
    DGIS	  Direct Graphics Interface Standard
    DHCP      Dynamic Host Configuration Protocol
    DHL       Dynamic Head Loading
    .DHP      Dr. Halo PIC (file name extension)
    DI	  Data In + Destination Index
    DIA	  Document Interchange Architecture [IBM]
    DIB	  Device Independent Bitmap +
    	  Directory Information Base
    DIBOL	  DEC Business Oriented Language
    .DIC	  Dictionary (file name extension)
    DID	  Direct Inward Dialing
    DIF	  Data Interchange Format
    DIFFSENS  Differential Sense
    DIIP	  Direct Interrupt Identification Port
    DIMM      Dual-Inline Memory Module
    DIN       Deutsche Industrie Norm (German equivalent of EIA)
    DIO	  Data Input-Output
    DIP	  Dialup Internet Protocol [Internet] +
    	  Digital Imaging Processing +
    	  Dual In-line Package + Dual In-line Pin
    DIR	  Directory (file)
    DIS	  Dynamic Impedance Stabilization [CompuCom]
    DISA	  Data Interchange Standards Association
    DISP	  Displacement (offset)
    DIT	  Directory Information Tree
    DIV	  Divide
    DIVE      Direct Interface Video Extension [OS/2 Warp]
    DIW       D-Inside Wire [AT&T]
    .DIZ	  Description In Zip (file name extension)
    DL	  Download (also D/L)
    DL/1	  Data Manipulation Language 1 [IBM]
    DLC	  Data Link Control (protocol) [IBM]
    DLD       Display List Driver
    DLE       Data Link Escape
    DLL	  Dynamic Link Library
    DLM	  Dynamic Link Module
    DLP       Digital Light Processing
    DLR       DOS LAN Requester
    DLT	  Digital Linear Tape
    DM	  Distributed Memory
    DMA	  Direct Memory Access/Addressing
    DMAC	  DMA Controller
    DMD	  Digital Micromirror Device [Texas Instruments]
    DME	  Distributed Management Environment
    DMF	  Distribution Media Format [Microsoft]
    DMI	  Desktop Mangement Interface
    DML	  Data Manipulation Language
    DMM	  Digital Multimeter
    DMMS	  Dynamic Memory Management System
    DMOS	  Double-diffused Metal-Oxide Semiconductor
    DMP	  Dot Matrix Printer
    DMPC	  Distributed Memory Parallel Computer
    DMQS	  Display Mode Query and Set [IBM]
    DMS	  Data Management Software + Data Management System
    DMSD	  Digital Multistandard Decoding
    DMT       Digital Multi-Tone
    DMTF      Desktop Management Task Force
    DMY	  Day Month Year
    DN	  Down
    DNC	  Direct Numerical Control
    DNIC	  Data Network Identification Code
    DNIS	  Dialed Number Identification Service
    DNS	  Domain Naming System
    DO        Data Out + Distributed Objects
    .DOC	  Document + Documentation (file name extensions)
    DOE	  Distributed Objects Everywhere
    DO-IT	  Disabilities, Opportunities, Internetworking and
    DOMF	  Distributed Object Management Facility
    DOS	  Disk Operating System
    DOSEM	  DOS Emulation
    DOW	  Day Of Week
    DP	  Data Processing
    DPA	  Demand Protocol Architecture [3Com]
    DPAM	  Demand Priority Access Method
    DPAREN	  Data Parity Enable [IBM]
    DPB	  Drive Parameter Block
    DPC	  Direct Program Control
    DPI	  Dots Per Inch
    DPL	  Descriptor Privilege Level
    DPM	  Digital Panel Meter
    DPMA	  Data Processing Management Association
    DPMI	  DOS Protected Mode Interface [Microsoft]
    DPMS	  Display Power Management Support
    DPO	  Data Phase Optimization
    DPS	  Document Processing System
    DPSK	  Differential Phase Shift Keying
    DPtoTP	  Display Coordinates to Tablet Coordinates
    DQL	  DataEase Query Language [DataEase International]
    DR	  Data Received
    D/R	  Direct or Reverse
    DRAM	  Dynamic Random Access Memory
    DRAW	  Direct Read After Write
    DR.BOND   Dial-up Router Bandwith On Demand [NEC]
    DRDA	  Distributed Relational Database Architecture [IBM]
    DR-DOS	  Digital Research-Disk Operating System
    DRDW	  Direct Read During Write
    DRI	  Digital Research Incorporated
    DRO	  Data Request Output + Destructive Read-Out
    DRS	  Document Registration System
    .DRS	  Driver Resource (file name extension) [WordPerfect]
    DRV	  Drive
    .DRV	  Device Driver (file name extension) (Also see .DVR)
    .DRW	  Draw + Drawing (file name extensions)
    DS	  Data Segment + Data Send + Data Server + Double Sided
    D/S	  Dhrystone Per Second
    DSA	  Directory System Agent
    DSAP	  Destination Service Access Point
    DSDD	  Double Sided, Double Density (diskette)
    DSE	  Data Storage Equipment
    DSEA	  Display Station Emulation Adapter
    DSECT	  Dummy Control Section
    DSHD	  Double Sided, High Density (diskette)
    DSIS	  Distributed Support Information Standard
    DSL	  Dynamic Simulation Language
    DSMA	  Digital Sense Multiple Access
    DSOM	  Distributed System Object Model
    DSP	  Digital Signal Processing +
    	  Digital Signal Processor
    DSQD	  Double Sided, Quad Density (diskette)
    DSR	  Data Set Ready + Device Status Register +
    	  Device Status Report
    DSS       Decision Support System + Digital Signature Standard
    DSSS	  Direct-Sequence Spread Spectrum
    DSTN	  Double Supertwisted Nematic
    DSU	  Data Service Unit + Digital Service Unit
    DSVD      Digital Simultaneous Voice and Data
    DSW	  Data Status Word + Device Status Word
    D2T2	  Dye Diffusion Thermal Transfer (printing)
    DTA	  Disk Transfer Area
    .DTA	  Data (file name extension)
    DTD	  Document Type Definition
    DTE	  Data Terminal Equipment + Dumb Terminal Emulator
    DTF       Distributed Test Facility
    DTL       Dialog Tag Language [IBM] + Diode-Transistor Logic
    DTMF      Data Tone Multiple Frequency + Dual Tone Multifrequency
    DTP       Desktop Publishing + Distributed Transaction Process
    DTR	  Data Terminal Ready + Data Transfer Rate
    DTV	  Desktop Video
    DTVC	  Desktop Video Conferencing
    DU	  Disk Usage
    DUA	  Directory User Agent
    DUAT	  Direct User Access Terminal
    .DV	  DESQview Script (file name extension)
    DVC       Desktop Video Conferencing
    DVE       Digital Video Effect
    DVI	  Digital Video Interactive
    .DVI	  Device Independent (file name extension)
    DVMRP	  Distance Vector Multicast Routing Protocol [Internet]
    .DVR	  Device Driver (file name extension) (Also see .DRV)
    DWG	  Drawing
    D2X	  Decimal To Hexadecimal [REXX]
    .DXB	  Drawing Interchange Binary (file name extension)
    DXC	  Data Exchange Control
    DXF	  Drawing Exchange Format


    (TOP) (UP to D) (DN to F) (BOTTOM)

    EA        Effective Address + Extended Attribute [OS/2]
    EAR	  External Access Register
    EARN	  European Academic Research Network
    EAROM	  Electrically Alterable Read Only Memory
    EARS	  Electronic Access to Reference Services
    EATA	  Enhanced AT Bus Attachment
    EBC	  EISA Bus Controller
    EBCDIC	  Extended Binary Coded Decimal Interchange Code [IBM]
    EBI	  Equivalent Background Input +
    	  Extended Background Investigation
    EBT	  Electronic Benefits Transfer
    EC	  Electronic Commerce + Error Control
    ECAL	  Enjoy Computing And Learn
    ECAT	  Electronic Card Assembly and Test [IBM]
    ECB       Electronic Codebook + Event Control Block
    ECC	  Error Check Code + Error Checking and Correction +
    	  Error Correction Code
    ECD	  Enhanced Color Display
    ECHO	  European Commission Host Organization [Internet]
    ECI       External Call Interface
    ECL       Emitter Coupled Logic
    ECM	  Electronic Control Module
    ECMA	  European Computer Manufacturers Association
    ECNE	  Enterprise Certified NetWare Engineer [Novell]
    ECP	  Enhanced Capabilities Port [Microsoft]
    ECTL	  Electronic Communal Temporal Lobe
    ECU	  EISA Configuration Utility
    ED	  Erase Display
    EDA	  Embedded Document Architecture [Go Corporation]
    EDC	  Enhanced Data Correction +
    	  Error Detection and Correction
    EDDC	  Extended Distance Data Cable
    EDGAR	  Electronic Data Gathering, Analysis and Retrieval
    EDI	  Electronic Data Interchange +
    	  Electronic Document Interchange [DEC]
    EDIFACT   EDI for Administration Commerce and Transport
    EDL       Edit Decision List
    EDLC      Ethernet Data Link Control
    EDLIN	  Editor (Line Text)
    EDM       Electronic Document Management
    EDO       Extended Data Out
    EDOS	  Enhanced DOS for Windows
    EDP	  Electronic Data Processing
    EDPM	  Electronic Data Processing Machine
    EDRAM	  Extended Dynamic Random Access Memory
    EDSAC	* Electronic Delay Storage Automatic Computer
    EDSI	  Enhanced Small Device Interface
    EDU	  Education (organization Domain name) [Internet]
    EDVAC	* Electronic Discrete Variable Automatic Computer
    	  (First stored-program digital computer)
    EE        Extended Edition [IBM]
    EEC       Extended Error Correction
    EEG	  Electroencephalogram
    EEL       Epsilon Extension Language
    EEM       Extended Memory Management
    EEMS	  Enhanced Expanded Memory Specification
    EEPROM	  Electrically Erasable Programmable Read-Only Memory
    EES	  Escrow Encryption Standard
    EFA	  Extended File Attribute
    EFF	  Electronic Frontier Foundation
    EFI	  Electromechanical Frequency Interference +
    	  Electronics For Imaging
    EFL	  Emitter Follower Logic
    EFTS	  Electronic Funds Transfer System
    EGA	  Enhanced Graphics Adapter
    EGP	  Exterior/External Gateway Protocol
    EHLLAPI   Emulator High Level Language Application
    	  Programming Interface [IBM]
    EIA	  Electronic Industries Association
    EIDE	  Enhanced Integrated Drive Electronics
    EIS	  Executive Information System
    EISA	  Extended Industry Standard Architecture
    EL	  Electroluminescent (display) + Erase Line
    ELC       Embedded Linking and Control
    ELF       Extremely Low Frequency
    ELS	  Entry Level System
    EM        Electronic Mail + Emphasized + End of Medium +
              Expanded Memory
    EMA	  Electronic Mail Association +
    	  Enterprise Management Architecture
    EMACS	  Editing Macros [Unix]
    E-MAIL	  Electronic Mail
    EMB	  Extended Memory Block [LIM/AST]
    EMBARC	  Electronic Mail Broadcast to a Roaming Computer
    EMC	  Electromagnetic Compatibility + E-Mail Connection +
    	  Extended Math Coprocessor
    EMI	  Electromagnetic Interference
    .EML	  Electronic Mail (file name extension)
    EMM	  Expanded Memory Manager
    EMR	  Electro-Magnetic Radiation +
    	  Enhanced Metafile Record
    EMS	  Electronic Mail System + Electronic Message Service +
    	  Expanded Memory Specification [LIM]
    EMWAC	  European Microsoft Windows NT Academic Centre
    .ENC	  Encoded (file name extension)
    ENDEC	  Encoder/Decoder
    ENDS	  Ends Segment
    ENIAC	* Electronic Numerical Integrator Analyzer and
    	  Computer (First fully electronic digital computer)
    ENQ	  Enquiry
    ENSS	  Exterior Nodal Switching Subsystem [Internet]
    EOA	  End of Address
    EOB	  End of Block
    EOC	  End of Conversion
    EOF       End of File + Enterprise Objects Framework [Next Computer]
    EOI	  End or Identify
    EOJ	  End of Job
    EOL	  End of Line + End of List
    EOM	  End of Message
    EOR	  Exclusive OR (Also XOR)
    EOS	  Earth Observing System [NASA] + End Of String
    EOSDIS	  Earth Observing System Data and Information System [NASA]
    EOT	  End Of Table + End of Tape (marker) + End of Text +
    	  End of Transmission
    EP        Electrophotographic Engine
    EPL       Effective Privilege Level
    EPLD	  Electrically Programmable Logic Device
    EPM	  Enhanced Editor for Presentation Manager [IBM] +
    	  Enterprise Process Management [IBM]
    EPP	  Enhanced Parallel Port
    EPROM	  Electrically Programmable Read Only Memory +
    	  Erasable Programmable Read Only Memory
    .EPS	  Encapsulated PostScript (file name extension)
    EPSF	  Encapsulated PostScript Files
    ERAS	  Electronic Routing and Approval System [Hughes Aircraft]
    ERIC	  Educational Resources Information Center [Internet]
    ERLL	  Enhanced Run Length Limited
    EROM	  Erasable Read Only Memory
    EROS	  Earth Resources Observation System [U.S. Geological Survey]
    ERR	  Error
    ER/RC	  Extended Result/Response Code
    ES	  Extra Segment
    ESA	  Enterprise Systems Architecture [IBM] +
    	  European Space Agency
    ESC	  EISA System Component + Escape
    ESCM	  Extended Services Communications Manager [IBM]
    ESCON	  Enterprise System Connection (Architecture) [IBM]
    ESC/P	  Epson Standard Code for Printers
    ESD	  Electronic Software Distribution +
    	  Electrostatic Discharge
    ESDI	  Enhanced Small Device Interface
    ESI	  Enhanced Serial Interface (specification) [Hayes]
    ESN	  Electronic Security Number
    ESP	  Emulation Sensing Processor +
    	  Enhanced Serial Port [Hayes] +
    	  Estimated Selling Price
    ESR       Event Service Routine
    ESS       Electronic Switching System
    ESU	  Electro-Static Unit
    ET        Enhancement Technology
    ETACS     Extended Total Access Communication System [IBM]
    ETANN     Electrically Trainable Analog Neural
    	  Network (chip) [Intel]
    ETB	  End of Transmission Block
    ETC	  Enhanced Throughput Cellular (modem protocol) [AT&T]
    ETOM      Electron-Trapping Optical Memory
    ETPL      Endorsed Tempest Products List
    ETS	  Econometric Time Series
    ETX	  End of Text
    EU	  Execution Unit
    EUC       Extended Unix Code [IBM]
    EVE       Extensible VAX Editor
    EVGA	  Extended Video Graphics Array +
    	  Extended Video Graphics Adapter
    EWAN	  Emulator Without A Good Name [Internet]
    EWS	  Employee Written Software [IBM]
    ExCA	  Exchangeable Card Architecture [Intel]
    .EXE	  Executable (file name extension)
    EXE2BIN   Program used to convert an (.EXE) file to binary
    	  format (.COM) file
    EXP	  Exponent
    EXT	  External
    EXTRN	  External Reference
    E-ZINE	  Electronic Magazine


    (TOP) (UP to E) (DN to G) (BOTTOM)

    FAB	  Computer-Chip Fabrication Plant
    FAC	  File Access Code
    FAMOS	  Floating Gate Avalanche MOS
    FAP	  File Access Protocol
    FAPI	  Family Application Program Interface
    FAQ	  Frequently Asked Question
    FARNET	  Federation of American Research Networks [Internet]
    FAT	  File Allocation Table
    FAX	  Facsimile
    .FAX	  Fax (file name extension)
    FC/AL     Fiber Channel/Arbitrated Loop
    FCB       File Control Block
    FCC	  Federal Communications Commission
    FCC:      File Carbon Copy
    FCCSET    Federal Coordinating Council for
    	  Science, Engineering and Technology
    FCI	  Flux Changes per Inch
    FCS       Fiber Channel Standard + Frame Check Sequence
    FD	  Floppy Disk + Floppy Drive + Full Duplex
    FDC	  Floppy Disk Controller
    FDDI	  Fiber Digital Device Interface +
    	  Fiber Distributed Data Interface
    FDISK	  Fixed Disk
    FDM	  Frequency-Division Multiplexing
    FDX	  Full Duplex
    FED	  Field-Emitter Display
    FEFO	  First-Ended, First-Out
    FEP	  Front End Processor
    FEPI      Front End Programming Interface
    FESDK     Far East Software Development Kit [Microsoft]
    FET	  Field Effect Transistor
    FF	  Flip-Flop + Form Feed
    FFDC      First Failure Data Capture [IBM]
    FFS       Fast File System
    FFST      First Failure Support Technology [IBM]
    FFT	  Fast Fourier Transform + Final Form Text [IBM]
    FIF	  Fractal Image Format
    FIFO	  First-In, First-Out
    FILO	  First-In, Last-Out
    FIP	  File Processor Buffering
    FIPS	  Federal Information Processing Standard
    FIR	  Finite Impulse Response
    FIX       Federal Internet Exchange
    FLC       Ferro-electric Liquid Crystal
    FLD	  Field
    FLL	  FoxPro Link Library [Microsoft Fox Pro]
    FLOPS	  Floating Point Operations Per Second
    FMS	  Forms Management System
    FMT	  Format
    FNT	  Font
    FOCUS	  Forum of Control Data Users
    FOG	  First Osborne Group
    FOIRL	  Fiber Optic Inter Repeater Link [IEEE]
    .FON	  Font + Phone + Phone Directory (all file name
    .FOR      Fortran source code (file name extension)
    FORTH	  (Programming Language)(See HLL)
    FORTRAN   Formula Translator (Programming Language)(See HLL)
    FOSE	  Federal Office Systems Exposition
    FOSI	  Format Option Specification Instance
    FOSSIL	  Fido/Opus/Seadog Standard Interface Layer
    FPC	  Floating Point Calculation
    FPCE      Floating-Point C Extension (specification)
    FPGA      Field Programmable Gate-Array
    FPLA	  Field Programmable Logic-Array
    FPP	  Fixed Path Protocol + Floating Point Processor
    FPR       Floating-Point Register
    FPS       Favorite Picture Selection + Frames Per Second
    FPT       Forced Perfect Termination
    FPU       Floating Point Unit
    FQDN	  Fully Qualified Domain Name [Internet]
    FRAG	  Fragment + Fragmentation
    FRAM	  Ferroelectric Random-Access Memory
    FRC	  Funtional Redundancy Checking
    FRED	  Frame Editor + Front-End to Dish
    FRPI	  Flux Reversals Per Inch
    .FRS	  WordPerfect Graphics Driver (file name extension)
    FS	  File Separator
    FSD	  File System Driver [OS/2]
    FSE	  Full Screen Editor
    FSF	  Free Software Foundation [Internet]
    FSK	  Frequency Shift Keying
    FSN	  Full Service Network
    FSP       File Service Protocol
    FSR       Free System Resources
    FST       Flat Square Tube (monitor)
    F/T       Full Time
    FTAM	  File Transfer, Access and Management +
    	  File Transfer and Access Method
    FTM	  Flat Tension Mask [Zenith]
    FTP	  File Transfer Protocol [Internet]
    FTPD	  File Transfer Protocol Daemon
    FTS	  Federal Telecommunication System
    FUI	  File Update Information
    FUNC	  Function
    FVT	  Full Video Translation
    FYI	  For Your Information


    (TOP) (UP to F) (DN to H) (BOTTOM)

    GA	  General Availability
    GAAP	  Generally Accepted Accounting Principles
    GAL	  Generic Array Logic
    GAPI	  Gateway Application Programming Interface
    Gb	  Gigabit (1,000 megabits) +
    	  (One Billion Bits of Information)
    GB	  Gigabyte (1,000 megabytes) +
    	  (One Billion Characters of Information)
    GCR	  Group Code Recording
    GDA	  Global Data Area
    GDDM	  Graphics Data Display Manager
    GDG       Generation Data Group [IBM]
    GDI       Graphical Device Interface
    GDLC	  Generic Data Link Control [IBM]
    GDP	  Graphic Draw Primitive
    GDT	  Geometric Dimensioning and Tolerancing +
    	  Global Descriptor Table
    GECOS	  General Electric Comprehensive Operating System
    GEIS	  General Electric Information Service (company)
    GEM	  Graphics Environment Manager (DRI Program)
    GENIE	  General Electric Network for
    	  Information Exchange
    GEO       Geostationary Earth Orbit
    GEOS      Graphic Environment Operating System [Geoworks]
    GET	  Get Execute Trigger
    GGP	  Gateway-Gateway Protocol [Internet]
    GHZ	  Gigahertz
    .GIF	  Graphics Interchange Format (file name extension)
    GIGO	  Garbage In, Garbage Out
    GIS	  Geographic Information System +
    	  Global Information Solutions [AT&T]
    GIX	  Global Internet Exchange [Internet]
    GKS	  Graphical Kernal System
    GL        Graphics Language
    G/L       General Ledger
    GLIS	  Global Land Information System [US Geological Survey]
    GLM	  General Linear Models
    GLOBE	  Global Learning by Observations to Benefit
    	  the Environment [Internet]
    .GLY	  Glossary (file name extension) [Microsoft Word]
    GMP       Global Mobile Professional
    GMS       Global Management System +
              Global Messaging Service [Novell]
    GMT	  Greenwich Mean Time
    GND	  Ground (signal/system)
    GNN	  Global Network Navigator [Internet]
    GNU	  Gnu's Not Unix (operating system)
    GOSIP	  Government Open Systems Interconnection Profile
    GOV	  Government (organization Domain name) [Internet]
    GP	  Gas Plasma + General Purpose
    GPF	  General Protection Fault
    GPI	  Graphics Programming Interface
    GPIB	  General Purpose Interface Bus
    GPR	  General Purpose Register [IBM]
    GPS	  Global Positioning Satellite/System
    GPSS	* General Purpose Systems Simulator (language)
    GRE	  Graphics Engine
    GREP	  Global Regular Expression Print
    .GRF	  Graph (file name extension)
    .GRP	  Group (file name extension)
    GS	  Group Separator
    GSI       General Server Interface
    GSM       Global Shared Memory +
              Global System for Mobile-Communications (network)
    GTE       General Telephone Electronics (corporation)
    GTL       Gunning Transceiver Logic
    GTO       Guide To Operations [IBM]
    GUI	  Graphical User Interface
    GVT       Global Virtual Time
    GW-BASIC  Gee Whiz BASIC
    .gz	  Compressed file (compressed filename extension -
    	  using GNU gzip compression/decompression program) [Unix]


    (TOP) (UP to G) (DN to I) (BOTTOM)

    .H	  Header (file name extension) [C]
    HACMP	  High Availability Cluster Multi-Processing [IBM]
    HAL       Hard Array Logic + Hardware Abstraction Layer +
              House-Programmed Array Logic
    HAL     * Heuristically Programmed Algorithmic (computer)
    	  [from 1968 movie "2001: A Space Odyssey"]
    HASP	  Houston Automatic Spooling Priority (System)
    HBA	  Host Bus Adapter
    HCSS      High Capacity Storage System
    HCU       Home Computer User
    HD        Hard Disk + High Density
    HDA	  Head Disk Assembly
    HDCD	  High Definition Compatible Digital
    HDF	  Hierarchical Data Format [NCSA]
    HDI	  Head to Disk Interference
    HDLC	  High-Level Data Link Control
    HDR	  Header
    HDSC	  High Density Signal Carrier [DEC]
    HDSL	  High-rate Digital Subscriber Link
    HDT       Host Digital Terminal
    HDTV      High Definition Television
    HDVD      High Definition Volumetric Display
    HDW       Hardware
    HDX	  Half Duplex
    HERC	  Hercules
    HEX	  Hexadecimal
    HFC       Hybrid Fiber-Coaxial
    HFS       Hierarchical File System [Macintosh]
    HFT       High Function Terminal [IBM]
    HGA       Hercules Graphics Adapter
    HGCP	  Hercules Graphics Card Plus
    HH	  Hour
    HIFD	  High-Density Floppy Disk
    HIL	  Human Interface Link [HP]
    HIMEM	  High Memory
    HIPPI	  High Performance Parallel Interface
    HLCO	  High Low Close Open
    HLL	  High Level Language
    HLLAPI	  High Level Language Application Programming Interface
    .HLP	  Help (file name extension)
    HLQ	  High Level Qualifier
    HLS	  Hue, Luminance, Saturation (color model)
    HLT	  Halt
    HMA	  High Memory Area [Microsoft] +
    	  Hub Management Architecture
    HMD	  Head Mounted Display
    HMOS	  High Density Metal Oxide Semiconductor +
    	  High Speed Metal Oxide Semiconductor
    HMP	  Host Monitoring Protocol
    HOTT	  Hot Off The Tree (electronic newsletter)
    HP	  Hewlett-Packard (Company)
    HPCC	  High Performance Computing and Communications
    HPDJ	  Hewlett-Packard Desk Jet
    HPFS	  High-Performance File System
    HPG	  Hewlett-Packard Graphics
    HPGL	  Hewlett-Packard Graphics Language
    HPIB	  Hewlett-Packard Interface Bus
    HPLJ	  Hewlett-Packard Laser Jet
    HPPA	  Hewlett-Packard Precision Architecture
    HPPI	  High Performance Parallel Interface
    HPR       High Performance Routing [IBM]
    HPUX      Hewlett-Packard Unix
    HPW	  High Performance Workstation [Sun]
    .HQX      BinHex (file name extension) [Macintosh]
    HRIS	  Human Resource Information System
    HRG	  High Resolution Graphics
    HRMS	  Human Resource Management System
    HS	  High Speed
    HSB       Hue, Saturation, Brightness (color model)
    HSC       High Speed Channel
    HSI       Hue, Saturation, Intensity
    HSM	  Hierarchical Storage Management
    HSP	  High Speed Printer
    HSSI	  High Speed Serial Interface
    HST	  High Speed Technology [U.S. Robotics]
    .HST	  History + Host (file name extensions)
    HSV	  Hue Saturation Value
    HTML	  HyperText Markup Language
    HTTP	  HyperText Transport Protocol
    HUT	  Hopkins Ultraviolet Telescope
    H/V	  Horizontal/Vertical
    HVP	  Horizontal & Vertical Position
    H/W	  Hardware
    HWCP	  Hardware Code Page
    HWD	  Height-Width-Depth
    .HYP	  Hyphenation (file name extension)
    HYTELNET  Hypertext-browser for Telnet Accessible Sites
    Hz	  Hertz


    (TOP) (UP to H) (DN to J) (BOTTOM)

    IAB	  Internet Architecture Board [Internet]
    IAC	  Inter-Application Communication [Macintosh]
    IAG       Instruction Address Generation
    IAK       Internet Access Kit [IBM]
    IAL	* International Algebraic Language
    	  (ALGOL was first called IAL)
    IANA	  Internet Assigned Numbers Authority [Internet]
    IAP	  Internet Access Provider [Internet]
    IAT	  Import Address Table
    IAUP	  Internet User Account Provider [Internet]
    IBC	  Instrument Bus Computer
    iBCS	  Intel Binary Compatibility Specification
    IBM	  International Business Machines (Corporation)
    IBM-GL	  IBM Graphics Language
    IC	  Input Circuit + Integrated Circuit + Interrupt Controller
    ICA	  Intra-application Communications Area
    ICAS	  Intel Communicating Applications Specifications
    ICB	  Internet Citizen's Band
    ICCP	  Institute for the Certification of Computing Professionals
    ICE	  In-Circuit Emulator [Intel]
    ICI	  Image Component Information
    ICL	  Interface Clear
    ICLID	  Incomming-Call Line Identification
    ICM	  Image Color Matching [Kodak]
    ICMP	  Internet Control Message Protocol [Novell]
    .ICO	  Icon (file name extension)
    iCOMP	  Intel Comparative Microprocessor (index) [Intel]
    ICP	  Integrated Channel Processor
    ICR	  Intelligent Character Recognition
    ICS	  Intuitive Command Structure
    ICU	  ISA Configuration Utility
    ID	  Identification + Identifier
    IDA	  Integrated Digital Access + Intelligent Disk Array +
    	  Intelligent Drive Array
    IDAPI	  Integrated Database Application Programming Interface
    IDC       Integrated Desktop Connector
    IDE       Imbedded Drive Electronics +
    	  Integrated Development Environment [Borland] +
    	  Integrated Drive Electronics +
    	  Intelligent Drive Electronics +
    	  Interactive Design and Engineering +
    	  Interface Design Enhancement
    IDEA      International Data Encryption Algorithm
    IDF       Intermediate Distribution Frame
    IDIV	  Integer Divide
    IDL	  Interface Definition Language
    IDMS	  Integrated Data Base Management System
    IDNX      Integrated Digital Network Exchange [IBM]
    IDP       Integrated Data Processing
    IDR       Intelligent Document Recognition
    IDT       Interrupt Descriptor Table
    .IDX	  Index (file name extension)
    IEC	  International Electrotechnical Commission
    IEEE	  Institute of Electrical and Electronics Engineers
    IEF	  Information Engineering Facility
    IEMSI	  Interactive Electronic Mail Standard
    IETF	  Internet Engineering Task Force [Internet]
    I/F	  Interface
    IFD	  Image File Directory
    IFF	  Interchangeable File Format [Amiga]
    IFG	  Incoming Fax Gateway
    IFP       Instruction Fetch Pipeline
    IFS       Installable File System
    IFSM	  Information Systems Management
    IGA	  Integrated Graphics Array
    IGC	  Integrated Graphics Controller
    IGES	  Initial Graphics Exchange Standard
    IGMP	  Internet Group Multicast Protocol [Internet]
    IGRP      Interior Gateway Routing Protocol [Cisco]
    IGS       Internet Go Server [Internet]
    IHD       Integrated Help Desk [IBM]
    IHV       Independent Hardware Vendor
    IIF	  Immediate IF
    IIOP      Internet Inter-Operability Protocol
    IIR       Immediate Impulse Response
    IITF	  Information Infrastructure Task Force
    ILS       International Language Support
    IMACS     Image Management and Communication System
    IMAP	  Internet Message Access Protocol [Internet]
    IMAX	  Maximum Image
    IMDS	  Image Data Stream (format) [IBM]
    IME	  Input Method Editor
    IMG	  Image
    IML	  Initial Microcode Load [IBM]
    IMP	  Information/Interface Message Processor
    IMPA	  Intelligent Multi-Port Adapter [DCA]
    IMR	  Internet Monthly Report [Internet]
    IMS	  Information Management System +
    	  Intermediate Maintenance Standards
    IMTC	  International Multimedia Teleconferencing Consortium
    IMTV	  Interactive Multimedia Television
    IMUL	  Integer Multiply
    IN	  Input
    INC	  Increment
    .IND	  Index (file name extension)
    .INF	  Information (file name extension)
    .INI	  Initialize (file name extension)
    INIT	  Initialization + Initialize
    INM	  Integrated Network Management
    INS	  Input String + Integrated Network Server
    INT	  Integer + Internal + Interrupt +
    	  International (organization Domain name) [Internet]
    INTA	  Interrupt Acknowledge
    InterNIC  Internet Network Information Center [Internet]
    INTO	  Interrupt if Overflow occurs
    I/O	  Input/Output
    IOCC      Input/Output Channel Converter +
              Input/Output Controller Chip
    IOCS      Input/Output Control System
    IOCTL	  Input/Output Control
    IODE	  Integrated Development and Debugging Environment [Symantec]
    IOPL	  Input/Output Priviledge Level
    IOSGA	  Input/Output Support Gate Array
    IP	  Instruction Pointer + Internet Protocol
    IPC	  Instructions Per Clock + Interprocess Communication
    IPDS	  IBM Personal Dictation System [IBM] +
    	  Intelligent Printer Data Stream [IBM]
    IPFC      Information Presentation Facility Compiler [IBM]
    IPI       Intelligent Peripheral Interface
    IPL       Initial Program Load/Loader +
    	  Ion Projection Lithography
    IPL	* Information Programming Language
    IPM	  Interpersonal Message
    IPSE	  Integrated Project Support Environment
    IPTC	  International Press Telecommunications Council
    IPX	  Internetwork Packet Exchange [Novell]
    IQL	  Interactive Query Language
    IR	  Infrared
    IRC	  Internet Relay Chat [Internet]
    IRD	  Integrated Receiver/Descrambler
    IRDA	  Infrared Data Association
    IRDS	  Information Resource Dictionary System
    IRET	  Interrupt Return
    IRF       Intermediate Routing Function +
              Inheritance Rights Filter [Novell]
    IRL	  Interactive Reader Language + Inter-Repeater Link
    IRLED	  Infrared Light Emitting Diode
    IRM	  Information Resource Management + Inherent Rights Mask
    IRQ	  Interrupt Request
    IRTF	  Internet Research Task Force [Internet]
    IRX	  Information Retrieval Experiment
    IS	  Information System + Interrupt Status
    ISA       Industry Standard Architecture +
              Instruction-Set Architecture
    ISAM	  Indexed Sequential-Access Management/Method
    ISBN	  International Standard Book Number
    ISC       Instruction Set Computer + Inter-Systems Communication [IBM]
    ISD	  Image Section Descriptor +
    	  Instructional Systems Design
    ISDN	  Integrated Services Digital Network
    ISH	  Information Super Highway
    ISI	  Internally Specified Index
    ISIS	  Integrated Systems and Information Services
    ISL	  Interactive System Language
    ISMF	  Interactive Storage Management Facility
    ISOC	  Internet Society
    ISO/OSI   International Organization for Standardization/Open
              Systems Interconnection (model)
    ISP	  Internet Service Provider [Internet] +
    	  Interrupt Stack Pointer + Interrupt Status Port
    ISPF	  Interactive System Programming Facility
    ISR	  Information Storage and Retrieval +
    	  Interrupt Service Routine
    ISSN	  International Standard Serial Number
    ISV	  Independent Software Vendor
    IT	  Information Technology
    ITB	  Information Technology Branch + Intermediate Text Block
    ITC	  International Typeface Corporation
    ITN	  Identification Tasking and Networking
    ITR	  Internet Talk Radio
    ITU	  International Telecommunication Union
    ITUG	  International Telecommunications User Group
    ITV	  Interactive Television
    ITX	  Intermediate Text Block
    IU	  Integer Unit
    IUAP	  Internet User Account Provider [Internet]
    IUS/ITB   Interchange Unit Separator/Intermediate Transmission
    IVIS	  Interactive Video Information System
    IVL	  Independent Vendor League + Intel Verification Lab
    IVR	  Interactive Voice Response
    IVS	  Interactive Videodisk System
    IVT	  Interrupt Vector Table
    IV&V	  Independent Verification & Validation
    I-WAY	  Information Highway
    IXC	  Interchange Carrier


    (TOP) (UP to I) (DN to K) (BOTTOM)

    JA	  Jump Address + Jump if Above
    JAD	  Joint Application Design
    JAE	  Jump if Above or Equal
    JANET	  Joint Academic Network
    JBE	  Jump if Below or Equal
    JC	  Jump if Carry set
    JCL	  Job Control Language
    JE	  Jump if Equal
    JEDEC	  Joint Electronic Devices Engineering Council
    JEIDA	  Japanese Electronics Industry Development Association
    JES	  Job Entry System
    JFET	  Junction Field Effect Transistor
    JFIF	  JPEG File Interchange Format
    JFS       Journaled File System [IBM]
    JG        Jump if Greater
    JGE	  Jump if Greater or Equal
    JIPS      JANET Internet Protocol Service
    JL        Jump if Less
    JLE	  Jump if Less than or Equal to
    JMP	  Jump
    JNA	  Jump if Not Above
    JNAE	  Jump if Not Above or Equal
    JNB	  Jump if Not Below
    JNBE	  Jump if Not Below or Equal
    JNG	  Jump if Not Greater
    JNGE	  Jump if Not Greater or Equal
    .JNK	  Junk (file name extension)
    JNLE	  Jump if Not Less or Equal
    JNO	  Jump if No Overflow
    JNP	  Jump if No Parity
    JNS	  Jump if No Sign
    JPE	  Jump if Parity Even
    JPEG	  Joint Photographic Experts Group
    JPL	  Jet Propulsion Laboratory
    JPO	  Jump if Parity Odd
    JS	  Jump if Sign
    JZ	  Jump if Zero
    JNZ	  Jump if Not Zero
    JUGHEAD   Jonzy's Universal Gopher Hierarchy
    	  Excavation and Display [Internet]


    (TOP) (UP to J) (DN to L) (BOTTOM)

    K-12	  Kindergarten through 12th Grade [US Education System]
    KAM       Keep Alive Memory
    Kb        Kilobit
    KB	  Keyboard + Kilobyte (1,024 bytes)
    KBD	  Keyboard (also KEYB)
    KBD$	  Keyboard [OS/2]
    KBPS	  Kilobytes Per Second
    KDT	  Key Definition Table
    KEFIR     Key Findings Reporter [GTE]
    KEYBBE    Foreign language KEYBoard program - Belgium
    KEYBBR	  Foreign language KEYBoard program - Brazil
    KEYBCF	  Foreign language KEYBoard program - Canadian-French
    KEYBCZ	  Foreign language KEYBoard program - Czechoslovakia
    KEYBDF	  Foreign language KEYBoard program - Denmark
    KEYBFR	  Foreign language KEYBoard program - France
    KEYBGR	  Foreign language KEYBoard program - Germany
    KEYBHU	  Foreign language KEYBoard program - Hungary
    KEYBIT	  Foreign language KEYBoard program - Italy
    KEYBLA	  Foreign language KEYBoard program - Latin America
    KEYBNL	  Foreign language KEYBoard program - Netherlands
    KEYBNO	  Foreign language KEYBoard program - Norway
    KEYBPL	  Foreign language KEYBoard program - Poland
    KEYBPO	  Foreign language KEYBoard program - Portugal
    KEYBSF	  Foreign language KEYBoard program - Swiss-French
    KEYBSG	  Foreign language KEYBoard program - Swiss-German
    KEYBSL	  Foreign language KEYBoard program - Czechoslovakia
    KEYBSP	  Foreign language KEYBoard program - Spain
    KEYBSU	  Foreign language KEYBoard program - Finland
    KEYBSV	  Foreign language KEYBoard program - Sweden
    KEYBUK	  Foreign language KEYBoard program - United Kingdom
    KEYBUS	  Foreign language KEYBoard program - United States
    KEYBYU	  Foreign language KEYBoard program - Yugoslavia
    kHz	  Kilohertz
    KIS	  Knowbot Information Service [Internet]
    KPI	  Kernal Programming Interface
    KQML	  Knowledge Query and Manipulation Language
    KSH	  Korn Shell (program) [Unix]
    KSPH	  Keystrokes Per Hour
    KSR	  Keyboard Send Receive
    KRS	  Knowledge Retrieval System


    (TOP) (UP to K) (DN to M) (BOTTOM)

    LADDR	  Layered Device Driver Architecture [Microsoft]
    LALL	  Longest Allowed Lobe Length
    LAN	  Local Area Network
    LANACS	  Local Area Network Asynchronous Connection Server
    LAPB	  Link Access Procedure Balanced (protocol)
    LAPD	  Link Access Procedure Direct (protocol)
    LAPM	  Link Access Procedure for Modems
    LAR	  Load Access Rights
    LASER     Light Amplification by Stimulated Emission of Radiation
    LASTport  Local Area Storage Transport (protocol) [DEC]
    LAT	  Local Access Terminal +
    	  Local Area Transport [DEC]
    LAVC	  Local Area VAX Cluster
    LAWN	  Local Area Wireless Network
    LB	  Left Button (of 2 or 3 button Mouse)
    LBA	  Logical Block Addressing
    LBL	  Label
    LBR	  Librarian
    .LBR	  Library (file name extension)
    LBT	  Listen Before Talk
    LBX	  Local Bus Accelerator
    LCA	  Lotus Communications Architecture [Lotus]
    LCC	  Leadless Chip Carrier
    LCD	  Liquid Crystal Display
    LCF	  Low Cost Fiber
    LCK	  Library Construction Kit [Mircrosoft FoxPro]
    LCP	  Link Control Protocol (protocol)
    LCU	  Last Cluster Used
    LDA	  Logical Device Address
    LDC	  Lotus Development Corporation
    LDM	  Long Distance Modem
    LDT	  Local Descriptor Table
    LE	  Less or Equal
    LEA	  Load Effective Address
    LEAF	  Law Enforcement Access Field
    LEC	  Local Exchange Carrier
    LED	  Light Emitting Diode
    LEL	  Link, Embed and Launch-to-edit [Lotus]
    LEM	  Language Extension Module
    LEN	  Low Entry Networking
    .LET	  Letter (file name extension)
    LEX	  Lexicon
    LF	  Line Feed
    LFI	  Last File Indicator
    LFN       Long File Name
    LFT       Low Function Terminal [IBM]
    LFU       Least Frequently Used
    LGDT	  Load Global Descriptor Table
    LIAS      Library Information Access System
    .LIB      Library (file name extension)
    LIC       Line Interface Coupler [IBM]
    LICS      Lotus International Character Set [LDC]
    LIDT	  Load Interrupt Descriptor Table
    LIEP	  Large Internet Exchange Packet [Novell]
    LIF	  Low Insertion Force
    LIFO	  Last In, First Out
    LILO	  Last In, Last Out
    LIM	  Lotus/Intel/Microsoft
    LIMA	  Lotus/Intel/Microsoft/AST
    LIMS	  Library Information Management System
    LINUX	  (Operating system named after Linus Torvalds)
    LIP	  Large Internet Packet
    LIPS	  Logical Inferences Per Second
    LISP	  List Processing (Language)(See HLL)
    LISTSERV  List Server [Internet]
    LLC	  Logical Link Control
    LLDT	  Load Local Descriptor Table
    LLF	  Low Level Format
    LMB       Left Mouse Button
    LMBCS     Lotus Multibyte Character Set [Lotus]
    LMI	  Local Management Interface
    LMS	  Lotus Messaging Switch [Lotus]
    LMSW	  Load Machine Status Word
    LMU       LAN Management Utilities [IBM]
    LM/X      LAN Manager for Unix
    LN	  Logarithm (Natural)
    LN:DI     Lotus Notes:Document Imaging
    LNK	  Link
    LOC	  Loop On-Line Control
    LOCIS	  Library of Congress Information System
    LODSB	  Load String Byte
    LOG	  Logarithm (Base 10)
    LOGO	  (Programming Language)(See HLL)
    LOOPE	  Loop while Equal
    LOOPNE	  Loop while Not Equal
    LOOPNZ	  Loop while Not Zero
    LOOPZ	  Loop while Zero
    LORE	  Line Oriented Editor
    LPC	  Local Procedure Call
    LPD	  Line Printer Daemon (protocol) [Berkley]
    LPI	  Lines Per Inch
    LPL	  Lotus Programming Language [Lotus 1-2-3] [LDC]
    LPM	  Lines Per Minute
    LPN	  Logical Page Number
    LPS	  Low-Power Schottky
    LPT	  Line Printer
    LPT1	  First Parallel Printer Port
    LPT2	  Second Parallel Printer Port
    LPT3	  Third Parallel Printer Port
    LQ	  Letter Quality
    LQM	  Link Quality Monitoring (protocol)
    LR        Link Register
    LRC       Local Register Cache +
    	  Longitudinal Redundancy Check
    LRL	  Least Recently Loaded
    LRM       Language Reference Manual + Least Recently-Used Master
    .LRS	  Language Resource (file name extension) [WordPerfect]
    LRU	  Least Recently Used
    LSA	  LAN and SCSI Adapter [IBM] + Line Sharing Adapter
    LSAPI	  License Services Application Program Interface
    LSB	  Least Significant Bit
    LSC	  Least Significant Character
    LSD	  Least Significant Digit
    LSI	  Large Scale Integration
    LSL	  Link Support Layer + Load Segment Limit
    LST	  List
    .LST	  List (file name extension)
    LTR	  Left-To-Right + Letter + Load Task Register
    LU	  Logical Unit (Also LUN)
    LUA	  Logical Unit Application (interface)
    LUI	  Local User Input
    LUIS      Library User Information Service
    LUT       Lookup Table
    LV        Logical Volume [IBM]
    LVM       Logical Volume Management [IBM]
    LZ        Lazy Write
    LZW	  Lempel-Ziv-Walsh (algorithm)


    (TOP) (UP to L) (DN to N) (BOTTOM)

    mA	  Milliampere
    Mac	  Macintosh (Apple Macintosh Computer)
    MAC	  Media/Medium Access Control
    .MAC	  MacPaint (file name extension) +
    	  Macro (file name extension)
    MACH	  Multilayer Actuator Head [Epson]
    MADE      Manufacturing and Automated Design Engineering
    mAh       Milliampere-Hour
    .MAI	  Mail (file name extension)
    MAN	  Manual [Unix] + Metropolitan Area Network
    MANPAGE   Manual Page [Unix]
    MAP	  Maintenance Analysis Procedures +
    	  Manufacturing Automation Protocol +
    	  Memory Allocation Map
    .MAP	  Linker Map (file name extension)
    MAPI	  Mail/Messaging Applications Programming
    	  Interface [Microsoft]
    MAPICS	  Manufacturing, Accounting and Production
    	  Information Control System [IBM]
    MARVEL	  Machine-Assisted Realization of the Virtual
    	  Electronic Library [Library of Congress]
    MASM	  Macro Assembler [Microsoft]
    MASS	  Maximum Availability and Support
    	  Subsystem [Parallan]
    MAU	  Media Access Unit + Multistation Access Unit
    MAVDM	  Multiple Application VDM
    MAX	  Maximum
    MB	  Megabyte (1,000 kilobytes) +
    	  Middle Button (of 3 button Mouse)
    MBASIC	  Microsoft BASIC [Microsoft]
    MBCS      Multi-Byte Character Set [IBM]
    MBONE     Multicast Backbone [Internet]
    MBPS	  Megabytes Per Second
    MBR	  Master Boot Record
    MBX	  Mailbox
    MCA       Micro Channel Adapter/Architecture [IBM]
    MCAD	  Mechanical Computer Aided Design
    MCB	  Memory Control Block
    MCGA	  Multicolor Graphics Array
    MCI	  MCI Communications Corp. (name from initials of
    	  original company - Microwave Communications, Inc.) +
    	  Media Control Interface [Microsoft]
    MCL	  Microsoft Compatibility Labs [Microsoft]
    MCM	  Multi-Chip Module
    MC-PGA	  Metallized Ceramic - Pin Grid Array
    MC-QFP	  Metallized Ceramic - Quad Flat Pack
    MCU	  Multi-Chip Unit [DEC]
    MD	  Make Directory + Monochrome Display
    MDA	  Monochrome Display Adapter
    .MDF	  Menu Definition File (file name extension)
    MDI	  Multiple Document Interface
    MDIC	  Manchester Decoder and Interface Chip [AT&T]
    MDK	  Multimedia Developers Kit [Microsoft]
    MDLP	  Modile Data Link Protocol
    MDR	  Minimum Design Requirement
    MDY	  Month Day Year
    .ME	  Opening Information (file name extension) (As in READ.ME)
    MEB	  Memory Expansion Board
    MEG	  Megabyte
    MEM	  Memory
    .MEN	  Menu (file name extension)
    MESI	  Modified, Exclusive, Shared and Invalid (protocol)
    MET	  Memory Enhancement Technology [Hewlitt-Packard]
    .MET	  Metafile (file name extension)
    MFC	  Microsoft Foundataion Class [Microsoft]
    MFFS	  Microsoft Flash File System [Microsoft]
    MFLOPS	  Million Floating Point Operations Per Second
    MFM	  Modified Frequency Modulation
    MFP	  Multifunction Peripheral
    MFPI      Multifunction Peripheral Interface
    MFS       Macintosh File System [Macintosh] +
    	  Magnetic Tape Field Search +
    	  Modified Filing System [Revelation Technologies]
    MFT	  Master File Table +
    	  Multiprogramming with a Fixed number of Tasks
    MGA	  Monochrome Graphics Adapter
    MGE	  Modular GIS Environment
    MGR	  Manager
    MHS	  Message Handling Service + Message Handling System
    MHz	  Megahertz
    MIB	  Management Information Base
    MICRO	  One-millionth
    MICS	  Macro Interpretive Commands
    MIDI	  Musical Instrument Digital Interface
    MIF	  Management Information Format
    .MIF	  Management Information Files (file name extension)
    MII	  Microsoft/IBM/Intel
    MIL	  Machine Interface Layer [Go Corporation] +
    	  Military (organization Domain name) [Internet]
    MIM	  Metal-Insulator-Metal (screen)
    MIMD	  Multiple Instruction Multiple Data Stream (processor)
    MIME	  Multipurpose Internet Mail Extension [Internet]
    MIN	  Minimum + Mobile Identification Number
    MINUET	  Minnesota Internet Users Essential Tool [Internet]
    MIPS	  Million Instructions Per Second
    MIS	  Management Information System +
    	  Multimedia Information Sources [Internet]
    MISC	  Miscellaneous
    MIX	  Member Information Exchange
    MKDIR	  Make Directory
    ML	  Machine Language + Meta Language
    MLAPI	  Multilingual Application Programming Interface
    MLC	  Multilayer Ceramic +
    	  Multilevel Cell (program) [Internet]
    MLID	  Multi-Link Interface Driver
    MLM	  Mailing List Manager [Internet]
    MM	  Minutes + Month
    MMA	  Microcomputer Managers Association
    MMC	  Matched Memory Cycle + Microcomputer Marketing Council
    MMCD      MultiMedia Compact Disk
    MMI       Man-Machine Interface
    MMIS      Materials Manager Information System
    MMPM	  Multi Media Presentation Manager
    MMU	  Memory Management Unit
    MNOS	  Metal Nitride Oxide Semiconductor
    MNP	  Microcom Networking Protocol [Microcom]
    .MNU	  Menu (fine name extension)
    MO	  Magneto-Optical (disk drive)
    MOB       Memory-Order Buffer
    MOBO      Mother Board
    MOD       Module + Modulus
    MODEM	  Modulator Demodulator
    MOHLL	  Machine Oriented High Level Language
    MOM	  Microsoft Office Manager [Microsoft]
    MOO       MUD, Object Oriented [Internet]
    MOP       Maintenance Operations Protocol
    MOS	  Metal Oxide Semiconductor
    MOSFET	  Metal Oxide Semiconductor Field Effect Transistor
    MOV       Metal Ocide Varistor + Move
    MOVS      Move String
    MP        Massively Parallel (processing) + Multiple Processors
    MPC	  Multimedia Personal Computer + Multipath Channel
    MPCS	  Mission Planning and Control Station (Software)
    MPE       Multiple Programming Executive [HP]
    MPEG      Moving Picture Experts Group
    MPI	  Message Passing Interface + Multiprecision Integer
    MPM	  Message Passing Library [IBM]
    MPP	  Massively Parallel Processing +
    	  Message Processing Program
    MPQP      Multi-Protocol Quad Port [IBM]
    MPR       Multipart Repeater + Multi Protocol Router [Novell]
    MPS	  Multiprocessor Specification
    MPTN      Multi-Protocol Transport Network
    MPTS      Multi-Protocol Transport Services
    MPU	  Microprocessor Unit
    MQI       Message Queue Interface
    MR        Magnetoresistive + Modem Ready
    MRCF	  Microsoft Realtime Compression Format
    MRCI	  Microsoft Realtime Compression Interface
    MRI	  Magnetic Resonance Imaging
    MRM       Most Recently-Used Master
    MRO       Multi-Region Operation
    MRP	  Materials Requirement Planning
    MRPL	  Main Ring Path Length
    MRS	  Media Recognition System
    MRT	  Mean Repair Time
    MS	  Memory System + Message Store + Microsecond +
    	  Microsoft Corporation + Millisecond
    MSACM	  Microsoft Audio Compression Manager [Microsoft]
    MSAU	  Multi-Station Access Unit
    MSAV	  Microsoft Anti Virus [Microsoft]
    MSB	  Most Significant Bit
    MSBF      Mean Swaps Between Failures
    MSCDEX    Microsoft Compact Disc Extensions [Microsoft]
    MSD	  Mass Storage Device + Most Significant Digit +
    	  Microsoft System Diagnostics [Microsoft]
    MS-DOS	  Microsoft - Disk Operating System [Microsoft]
    MSDR	  Multiplexed Streaming Data Request
    MSDS	  Microsoft Developer Support [Microsoft]
    MSFR      Minimum Security Function Requirements [IBM]
    MSG       Message
    .MSG	  Program Message (file name extension)
    MSI	  Medium Scale Integration
    MSL       Map Specification Library + Mirrored Server Link
    MSN	  Microsoft Network [Microsoft]
    MSO	  Multiple-Systems Operator
    .MSP	  Microsoft Paint (file name extension) [Microsoft]
    MSS       Mass Storage System
    MSW       Machine Status Word
    MTA	  Message Transfer Agent + Multiple Terminal Access
    MTBB	  Mean Time Between Breakdowns
    MTBF	  Mean Time Between Failures
    MTBJ	  Mean Time Between Jams
    MTF	  Microsoft Tape Format [Microsoft] +
    	  Modulation Transfer Function
    MTS	  Message Transfer Service/System +
    	  Multichannel Television Sound
    MTTD      Mean Time To Diagnose
    MTTF      Mean Time To Failure
    MTTR	  Mean Time To Repair
    MTU       Maximum Transmission Unit
    MUD       Multi-User Dialogue/Domain/Dungeon [Internet]
    MUL	  Multiply
    MUMPS	  Massachusetts General Hospital Utility
    	  Multi-Programming System (Programming Language)
    MUSE	  Multi-User Shared Environment
    MUT       Monitor Under Test
    MUX       Multiplexer
    mV	  Millivolt
    MVB	  Multimedia Viewer Book
    MVC	  Multimedia Viewer Compiler
    MVDM	  Multiple Virtual DOS Machines
    MVGA	  Monochrome Video Graphics Array
    MVP	  Multimedia Video Processor
    MVS	  Multiple Virtual Storage
    MVT	  Multiprogramming with a Variable number of Tasks
    MX	  Mail Exchanger [Internet]
    MZR	  Multiple Zone Recording


    (TOP) (UP to M) (DN to O) (BOTTOM)

    NAC	  Network Adapter Card
    NACD	  National Association of Computer Dealers
    NACS	  National Advisory Committee on Semiconductors
    NAE	  Not Above or Equal
    NAK	  Negative Acknowledgment
    NAM	  Number Assignment Module
    NAMPS	  Narrow-Band Analog Mobile Phone Service [Motorola]
    NANO	  One thousand-millionth
    NAP	  Network Access Point
    NAPLPS	  North American Presentation Level Protocol
    	  Syntax (graphics)
    NAS	  Network Application Support [DEC]
    NASA	  National Aeronautics and Space Administration
    NASDAQ	  National Association of Securities Dealers
    	  Automatic Quotation
    NASI	  NetWare Asynchronous Services Interface [Novell]
    NASKER	  NASA Ames Kernel (benchmark)
    NAU	  Network Addressable Unit
    NBE	  Not Below or Equal
    NBI	  Nothing But Initials
    NBS	  National Bureau of Standards + Numeric Backspace
    NC	  No Carry + Numerical Control
    NCA	  Network Communications Adapter
    NCC	  Network Control Center
    .NCF	  Netware Command File [Novell]
    NCGA	  National Computer Graphics Association
    NCIC	  National Crime Information Center
    NCMT	* Numerical Control for Machine Tools
    NCP	  NetWare Core Protocol + Not Copy Protected +
    	  Network Control Processor/Program/Protocol
    NCR	  National Cash Register (Company)
    NCSA	  National Center for Supercomputing Applications
    NCSC	  National Computer Security Center
    NCSI      Network Communications Services
              Interface [Network Products Corp.]
    NDB       Non-Directional Beacon
    NDDK	  Network Device Development Kid [Microsoft]
    NDEF	  Not to be Defined
    NDIS	  Network Device/Driver Interface Specification
    NDP	  Numeric Data Processor
    NDR       Network Data Representation
    NDRO      Non-Destructive Read Out
    NDS	  NetWare Directory Service [Novell]
    .NDX	  Index (file name extension)
    NEC	  Nippon Electric Company
    NED	  NASA Extragalactic Database [NASA]
    NEG	  Negative + Negate
    NEP	  Network Entry Point
    NES	  National Education Supercomputer
    NEST      Novell Embedded Systems Technology [Novell]
    NET       Network (organization Domain name) [Internet]
    NetBIOS   Network Basic Input/Output System [IBM]
    NetBEUI   NetBIOS Extended User Interface [IBM]
    .NEW	  New Information (file name extension)
    NEWS	  NetWare Early Warning System [Frye Computer]
    NEWS.     Current events [USENET Newsgroup Category]
    NEXT      Near-End Crosstalk
    NFF	  No Fault Found
    NFS       Network File Server/System
    NG	  No Good
    NGE	  Not Greater or Equal
    NHC	  National Hurricane Center
    NHR       National Handwriting Recognition
    N/I       Non-Interlaced
    NIA	  Next Instruction Address
    NIC	  Network Information Center [Internet] +
    	  Network Interface Card +
    	  Numeric Intensive Computing
    NICAD     Nickel-Cadmium
    NICOLAS   Network Information Center OnLine Aid System [NASA]
    NID	  New Interactive Display [NEC] + Next ID
    NII	  National Information Infrastructure
    NIM       Network Installation Management [IBM]
    NIMH      Nickel-Metal Hydride
    NIO       Native Input/Output
    NIPS      Network I/Os Per Second
    NIR	  Network Information Retrieval
    NIS	  Network Information Service [Unix]
    N-ISDN    National ISDN
    NISO      National Information Standards Organization
    NISP	  Networked Information Services Project
    NIST	  National Institute for Standards and Technology
    NITC	  National Information Technology Center
    NIU       Network Interface Unit
    NJE       Network Job Entry (protocol) [IBM]
    NL	  New Line
    NLE	  Not Less or Equal
    NLM	  NetWare Loadable Module [Netware]
    NLP       Natural-Language Processing
    NLQ       Near Letter Quality
    NLSFUNC   National Language Support Function
    NLV       National Language Version [IBM]
    NMI       Non-Maskable Interrupt
    NMM	  NetWare Management Map [NetWare]
    NMOS	  Negative Channel Metal-Oxide Semiconductor
    NMP	  Network Management Protocol [AT&T]
    NMS	  Network Management System [Novell]
    NN        Network Node + No News [Internet]
    NNI	  Network-Network Interface
    NNTP	  Network News Transfer Protocol [Internet]
    NOC	  Network Operations Center
    NOP	  No Operation
    NOPAC     Network OPAC
    NOR       Not Or
    NOS	  Network Operating System
    NPA	  Network Printer Alliance
    NPI	  Network Printer Interface
    NPL	  Nonprocedural Language
    NPS       Novell Productivity Specialist [Novell]
    NPTN      National Public Telecomputing Network
    NPU	  Natural Processing Unit
    NPX	  Numeric Processor Extension
    NQS       Network Queing System [Cray]
    NRC       National Research Council (Canada)
    NREN	  National Research and Education Network
    NRZ	  Not Return to Zero
    NRZI	  Non Return to Zero Inverted
    NS	  Nanosecond + Network Supervisor + Non Stop
    NSA POLY  National Security Agency Polygraph
    NSERC	  National Sciences and Engineering Research Council (Canada)
    NSF	  National Science Foundation
    NSFNET	  National Science Foundation Network
    NSI	  NASA Science Internet
    NSLOOKUP  Name Server Lookup [Unix]
    NSP       Native Signal Processing [Intel] + Network Service Provider
    NSSC	  NASA Standard Spacecraft Computer
    NSTC	  National Science and Technology Council
    NSTL	  National Software Testing Labs
    NT	  New Technology [Microsoft]
    NTAS	  NT Advamced Server [Microsoft]
    NTF	  No Trouble Found
    NTFS	  New Technology File System [Microsoft]
    NTIA	  National Telecommunications and
    	  Information Administration
    NTIS	  National Technical Information Service
    NTRAS	  NT Remote Access Services [Microsoft]
    NTSA	  NetWare Telephony Services Architecture [Novell]
    NTSC	  National Television Standards Committee
    NUI	  Network User Identification +
    	  Network User Interface +
    	  Notebook User Interface [Go Corporation]
    NUL	  Null + (dummy device) + (no device)
    NV	  No Overflow
    NVM	  Non-Volatile Memory
    NVOD      Near-Video On Demand
    NVP       Nominal Velocity of Propagation
    NVRAM	  Non-Volatile Random Access Memory
    NVT	  Network Virtual Terminal +
    	  Novell Virtual Terminal [Novell]


    (TOP) (UP to N) (DN to P) (BOTTOM)

    OAB	  One-to-All Broadcast
    OAD       Open Architecture Driver [Bernoulli]
    OAG       Official Airline Guide + Online Air Guide
    OAI	  Open Applications Interface
    OAS	  One-to-All Scatter
    OBD       On Board Diagnostics
    OBEX      Object Exchange [Borland]
    OBJ	  Object
    OC	  Optical Carrier
    OCE	  Open Collaborative Environment [Apple]
    OCF       Objects Components Framework [Borland]
    OCL       Operation Control Language + Operator Control Language
    OCR	  Optical Character Recognition
    OCS       On-Card Sequencer
    ODA       Office Document Architecture
    ODAPI	  Open Database Application Programming
    	  Interface [Borland]
    ODBC	  Open Data Base Connectivity [Microsoft]
    ODBMS	  Object-Oriented Database Management System  (also
    	  see OODMS)
    ODI	  Open Datalink Interface [Novell] +
    	  Open Device Interconnect [NetWare]
    ODM       Object Data Manager [IBM]
    ODMA      Open Document Management API
    ODP       Open Distributed Processing
    ODS       Open Data Services [Microsoft]
    ODT	  Open Desktop
    OEM	  Original Equipment Manufacturer
    OEP       Operand Execution Pipeline
    OF        Overflow Flag
    OFB       Output Feedback (mode)
    OFMT	  Output Format for Numbers
    OFS       Object File System [Microsoft] + Output Field Separator
    OH	  Off Hook
    OIDL	  Object Interface Definition Language
    OIS	  Office Information Systems
    OLAP      On-Line Analytical Processing
    .OLD	  Old version (file name extension)
    OLE	  Object Linking and Embedding [Microsoft]
    OLI	  Optical Line Interface [AT&T]
    OLMC	  Output Logic Macrocell
    OLTP	  On-Line Transaction Processing
    OM	  Object Manager
    OMA       Object Management Architecture [Microsoft]
    OME       Open Messaging Environment (protocol)
    OMF	  Object Module Format [Microsoft] +
              Open Media Framework + Open Message Format
    OMG	  Object Management Group
    OMI	  Open Messaging Interface [Lotus]
    OMNS	  Open Network Management System
    OMR	  Optical Mark Recognition
    ONC	  Open Network Computing [Sun]
    ONDS      Open Network Distribution Services [IBM]
    OODB      Object-Oriented Database
    OODMS	  Object-Oriented Database Management System (also
    	  see ODBMS)
    OOL	  Object-Oriented Language
    OOOS      Object-Oriented Operating System
    OOPL      Object-Oriented Programming Language
    OOPS	  Object Oriented Programming and Systems
    OOS	  Object-Oriented Systems +
    	  Off-line Operating Simulator
    OOT       Object-Oriented Technology
    OOUI      Object Oriented User Interface
    OP	  Operation + Optical + Output
    OPAC      Online Public Access Catalog [Internet]
    OPC	  Optical Photoconductor
    OPCODE	  Operational Code
    OPD	  Operand
    OPI	  Open Prepress Interface
    OPM	  Operations Per Minute
    OPS	  Operations
    OPT	  Open Protocol Technology
    .OPT	  Options (file name extension)
    OPUS	  Octal Program Updating System
    ORACLE	  On-Line Inquiry and Report Generator (UNIX DB program)
    ORB       Object Request Broker [Microsoft]
    ORG       Organization (organization Domain name) [Internet]
    ORI       Online Retrieval Interface
    .ORI      Original (file name extension)
    ORS	  Output Record Separator
    OS	  Operating System
    OS/2	  Operating System/2 [IBM]
    OSA	  Open System Architecture
    OS/E	  Operating System/Environment
    OSF	  Open Software Foundation
    OSI	  Open Systems Interconnection
    OSM	  Off-Screen Model
    OSP	  Optical Storage Processor
    OSPF	  Open Shortest Path First
    OSQL	  Object Structured Query Language
    OT	  Object Technology
    OTDR	  Optical Time Domain Reflectometer
    OTF	  Open Token Foundation
    OTP	  One-Time Programmable
    OURS	  Open Users Recommended Solutions
    .OUT	  Outlines (file name extension)
    OUTS	  Output String
    OV	  Overflow
    .OVL	  Program Overlay (file name extension)
    .OVR	  Program Overlay (file name extension)
    OWL	  Object Windows Library [Borland] +
    	  Open Windows Library [Borland]


    (TOP) (UP to O) (DN to Q) (BOTTOM)

    PABX	  Private Automatic Branch Exchange
    PACS	  Picture Archiving and Communication System
    PACS-L	  Public Access Computer Systems List [Internet]
    PAD	  Packet Assembler/Disassembler
    PADS	  Pen Application Development System [Slate Corporation]
    PAIH	  Public-Access Internet Host [Internet]
    PAIS	  Public-Access Internet Site [Internet]
    .PAK	  Packed (compressed file name extension) [NoGate
    PAL	  Paradox Applications Language [Borland] +
    	  Phase Alternating Line + Programmed Array Logic +
    	  Programming Assembly Language
    .PAL      Palette (file name extension)
    PALC      Plasma-Addressed Liquid Crystal (display)
    PALS	  Principles of the Alphabet Literacy System
    PAM	  Pulse Amplitude Modulation
    PAP	  Packet-level Procedure +
    	  Passwork Authentication Protocol +
    	  Printer Access Protocol
    PAR       Personal Animation Recorder + Parallel
    PARA	  Paragraph
    PARC	  Palo Alto Research Center [XEROX]
    .PAS	  PASCAL source code (file name extension)
    PASCAL	  (Programming Language named for Blaise Pascal)
    .PAT      Patch + Pattern (file name extensions)
    PAX	  Portable Archive Exchange [Unix]
    PBE	  Prompt By Example
    PBGA	  Plastic Ball Grid Array
    PBX	  Private Branch Exchange
    PC	  Personal Computer + Printed Circuit + Program Counter
    PCACIAS   Personal Computer Automated Calibration Interval
    	  Analysis System
    PCB	  Printed Circuit Board + Program Control Block
    PCBC	  Plain Cipher Block Chaining
    PCD	  Photo Compact Disk
    PC-DOS	  Personal Computer - Disk Operating System [IBM]
    PCEB	  PCI to EISA Bridge [Intel]
    PCI	  Peripheral Component Interconnect/Interface
    PC-I/O	  Program Controlled I/O
    PCL	  Printer Command Language [HP] + Process Control Language
    PCM	  Personal Computer Manufacturer + Pulse Code Modulation
    PCMC	  PCI, Cache, Memory Controller [Intel]
    PCMCIA	  Personal Computer Memory Card International Association
    PCMIM	  Personal Computer Media Interface Module
    PCN	  Personal Computer Network
    PCNFS	  Personal Computer Network File System
    PCO       Point of Control and Observation
    PCS       Patchable Control Store +
    	  Personal Communication Services/System +
    	  Personal Conferencing Specification +
    	  Planning Control Sheet + Print Contrast Signal +
    	  Process Control Systems + Program Counter Store +
    	  Programmable Drive Table + Project Control System
    .PCT	  Picture (file name extension)
    .PCX	  Picture Image (file name extension)
    PD	  Public Domain
    PDA	  Personal Digital Assistant
    PDD	  Physical Device Driver
    PDF       Package Definition File + Portable Document Format +
              Portable Document File + Processor Defined Function +
    	  Program Development Facility
    .PDF	  Printer Description (file name extension)[Borland,Lotus]
    PDIAL	  Public Dialup Internet Access List [Internet]
    PDL	  Page Description Language + Program Description Language
    	  + Program Design Language
    PDM	  Product Data Management
    PDN	  Public Data Network
    PDP       Plasma Display Panel + Programmable Data Processor +
    	  (DEC Computer System Designation, i.e. PDP-8, PDP-11)
    PDS	  Packet Driver Specification + Partitioned Data Set +
    	  Planetary Data System + Portable Document Software +
    	  Processor Direct Slot [Macintosh]
    PDSS	  Post Development and Software Support
    PDT       Performance Diagnostic Tool [IBM] +
              Programmable Drive Table
    PDU	  Plug Distribution Unit
    .PDX	  Paradox files (file name extension) [Borland]
    PE	  Parity Even + Processing Element + Protect Enable
    PEA	  Pocket Ethernet Adapter
    PEL	  Picture Element [IBM]
    PEM	  Privacy-Enhanced Mail [Internet]
    PEN SDK   Pen Computing Software Development Kit
    PEP	  Packetized Ensemble Protocol [Telebit]
    PERL	  Practical Extraction and Report Language [Unix]
    PERT	  Program Evaluation and Review Technique
    PES	  Positioning Error Signal + Processor Enhancement Socket
    	  Processor Upgrade Socket
    PET	  Print Enhancement Technology [Compaq]
    .PFB      Printer Font Binary (file name extension)
    .PFM      Printer Font Metrics (file name extension) [Windows]
    PFR	  Power-Fail Restart
    PGA	  Pin Grid Array + Professional Graphics Adapter [IBM]
    PGC       Program Group Control [Microsoft]
    PGDN      Page Down
    .PGL	  Graphics (file name extension) [Hewlett-Packard]
    PGM	  Program
    PGP	  Pretty Good Privacy (name of encryption program)
    .PGP	  ProGram Parameter (file name extension) [AutoCAD]
    PGUP	  Page Up
    PHIGS	  Programmers' Hierarchial Interactive Graphics
    .PHO	  Phone List (file name extension)
    PHS       Personal Handyphone System
    PI        Program Interruption
    PIA	  Peripheral Interface Adapter
    PIC	  Personal Intelligent Communicator +
    	  Priority Interrupt Controller +
    	  Program Interrupt Controller
    PICT	  Picture
    PID       Process Identification Number +
              Proportional, Integral, Derivative
    PIF	  Picture Interchange Format File +
    	  Program Information File
    PII       Program Integrated Information
    PILOT     Programmed Inquiry Learning Or Teaching
    PilotACE* Pilot Automatic Computing Engine
    PIM	  Personal Information Manager
    PIN	  Personal Identification Number +
    	  Process Identification Number [Unix]
    PINE	  Pine Is Not Elm [Unix]
    PING	  Packet Internet Groper
    PIO	  Parallel Input/Output + Processor Input/Output +
    	  Programmed Input/Output
    PIP	  Picture In Picture + Problem Isolation Procedure +
    	  Programmable Interconnect Point
    PIPO	  Parallel In, Parallel Out
    PIT	  Programmable Interval Timer
    PIXEL	  Picture Element
    PL	  Plus
    PLA	  Programmable Logic-Array
    PLATO	  Programmed Logic for Automatic Teaching Operations
    PLC	  Programmable Logic Controller
    PLCC	  Plastic Leadless Chip Carrier
    PLD	  Programmable Logic Device
    PLDS	  Pilot Land Data System [NASA]
    PLL	  Phase Locked Loop
    .PLL	  Prelinked Library (file name extension) [Clipper]
    PL/M	  Programming Language for Micros
    PLS	  Primary Link Station
    PLV	  Production Level Video
    PL/1	* Programming Language One
    PM	  Presentation Manager [IBM] +
    	  Preventative Maintenance + Process Manager
    PMMU	  Paged Memory Management Unit
    PMOS	  Positive Channel Metal Oxide Semiconductor
    PMR       Problem Management Report [IBM]
    PMS       Policy Management System
    PN	  Processing Node
    PNA       Programmable Network Access
    PNP       Plug And Play
    PO	  Parity Odd
    POC	  Point Of Contact
    POE	  Power Open Environment
    POH	  Power-On Hours
    POL	  Problem Oriented Language
    POP	  Point Of Presence [MCI] + Pop from Stack +
    	  Post Office Protocol
    POPA	  Pop All Registers
    POPF	  Pop Flags
    POR	  Power-On-Reset
    POS	  Point Of Sale + Positive + Programmable Object Select
    POSIX	  Portable Operating System Interface for Unix
    POST	  Power-On Self Test
    POSTNET   Postal Numeric Encoding Technique
    POTS	  Plain Old Telephone Service
    POWER	  Performance Optimization with Enhanced RISC [IBM]
    PowerPC   Performance Optimization with Enhanced RISC-Performance
    PPDS	  Personal Printer Data Stream [IBM]
    PPGA	  Plastic Pin Grid Array
    PPM	  Pages Per Minute
    PPP	  Point-to-Point Protocol [Internet]
    PPS	  Packets Per Second + Power Personal Systems [IBM]
    PQFP	  Plastic Quad Flat Pack
    PRACSA	  Public Remote Access Computer Standards Association
    PRAM	  Parallel Random-Access Machine +
    	  Parameter Random Access Memory
    .PRD	  Printer Driver (file name extension) [Word]
    PRE       Preformatted [HTML]
    PReP      Power PC Reference Platform [IBM/Motorola]
    PRF	  Pulse Repetition Frequency
    .PRF	  Preferences (file name extension) [Grammatik IV]
    .PRG	  Program (file name extension)
    PRINTF	  Print with Formatting [C Programming Language]
    PRMD	  Private Mangement Domain [X.400]
    PRML	  Partial-Response Maximum-Likelihood
    .PRO	  Profile (file name extension)
    PROC	  Procedure
    PROFS	  Professional Office System [IBM]
    PROG	  Program + Programmer
    PROLOG	  Programming In Logic (Programming Language)(See HLL)
    PROM	  Programmable Read Only Memory
    PRN	  Printer
    .PRS	  Printer (file name extension) [WordPerfect]
    PRTSC	  Print Screen
    PS	  Proportional Spacing
    .PS	  PostScript (file name extension)
    PS/2	  Programming System 2 [IBM]
    PSC       Personal Super Computer + Print Server Command +
              Product Service Center
    PSDN	  Packet-Switched Data Network
    PSDS	  Packet-Switched Data Service
    PSERVER   Print Server [NetWare]
    PSF	  Permanent Swap File
    PSID	  PostScript Image Data
    PSM       Printing Systems Manager
    PSN       Packet Switching Network
    PSP	  Personal Software Products (group) [IBM] +
    	  Program Segment Prefix
    PSPDN	  Packet-Switched Public Data Network
    P-SRAM	  Pseudo-Static Random Access Memory
    PSRT	  PostScript Round Table [GEnie]
    PSTN	  Public Switched Telephone Network
    PSU       Power Supply Unit
    PSW       Program Status Word
    .ps.Z	  Compressed PostScript (file name extension) [Unix]
    PT	  Page Table
    P/T	  Part Time
    PTD	  Parallel Transfer Disk Drive
    PTF       Problem Temporary/Trouble Fix [IBM]
    PUB       Public (directory) [Internet] + Publish
    .PUB	  Publication (file name extension) [Ventura]
    PUP	  PARC Universal Packet (protocol)
    PUS	  Processor Upgrade Socket
    PUSHA	  Push All Registers
    PUSHF	  Push Flags
    PVC	  Permanent Virtual Circuit + Polyvinyl Chloride
    PVM	  Parallel Virtual Machine +
    	  Pass-through Virtual Machine (protocol) [IBM]
    PVP	  Parallel Vector Processing
    PVS       Parallel Visualization Server
    PW        Password
    PWB	  Printed Wire Board +
    	  Programmer's Workbench [Microsoft]
    PWD	  Print Working Directory [Unix]
    PWR	  Power
    PWSCS     Programmable Workstation Communication Services [IBM]
    .PX	  Primary Index (file name extension) [Paradox]


    (TOP)(UP to P)(DN to R)(BOTTOM)

    QA	  Quality Assurance
    QAM	  Quadrature Amplitude Modulation
    QBE	  Query By Example
    QBF	  Query by Form
    QC	  Quality Control
    QDOS	  Quick and Dirty Operating System
    .QDI	  Dictionary (file name extension) [Quicken]
    .QDT	  Data (file name extension) [Quicken]
    QEMM	  Quarterdeck Expanded Memory Manager [Quarterdeck Corp.]
    QFA	  Quick File Access
    QFP	  Quad Flat Pack
    QIC	  Quality Information Using Cycle Time [Hewlett-Packard] +
    	  Quarter-Inch Cartridge
    .QIF      Quicken Import File/Interchange Format (file name extension)
    .QMT	  Memorized List (file name extension) [Quicken]
    .QNX	  Indexes to Data (file name extension) [Quicken]
    QPSK	  Quadrature Phase Shift Keying


    (TOP) (UP to Q) (DN to S) (BOTTOM)

    RA	  Return Authorization
    RACF	  Resource Access Control Facility
    RAD	  Rapid Application Development
    RAG	  Row Address Generator
    RAID	  Redundant Arrays of Independent Disks +
    	  Redundant Arrays of Independent Drives +
    	  Redundant Arrays of Inexpensive Disks
    RAIS      Redundant Arrays of Inexpensive Systems
    RALU      Register Arithmetic Logic Unit
    RAM	  Random Access Memory
    RAMDAC	  Random Access Memory Digital-to-Analog
    	  Converter [Sierra]
    RAMP	  Remote Access Maintenance Protocol [Internet]
    RAND	  Random
    RAP	  Rapid Application Prototyping
    RARP	  Reverse Address Resolution Protocol
    RAS	  Random Access Storage +
              Reader Admission System [British Library] +
              Reliability, Availability and Serviceability +
              Remote Access Service + Row Address Select
    RASAPI	  Remote Access Service Application Programming
    	  Interface [Microsoft]
    RB	  Right Button (of 2 or 3 button Mouse)
    RBBS	  Remote Bulletin Board System
    RBCS      Remote Bar Code System
    RCL       Rotate Carry Left
    RCP       Remote Control Panel + Remote Copy [Internet] +
              Restore Cursor Position
    RCR	  Rotate Carry Right
    RCS	  Records Communications Switching System +
    	  Revision Control System [Unix]
    RD	  Receive Data + Remove Directory
    R&D	  Research and Development
    RDA	  Remote Database Access
    RDB	  Receive Data Buffer + Relational Database
    RDBMS	  Relational Database Mangement System
    RDCLK	  Received Timing Clock
    RDP	  Reliable Datagram Protocol
    RDRAM     Rambus Dynamic Random Access Memory
    RDSR      Receiver Data Service Request
    RDTO      Receive Data Transfer Offset [IBM]
    .REC      Recorder (file name extension)
    REC.      Recreation [USENET Newsgroup Category]
    .REF      Reference (file name extension)
    REG	  Register
    REGAL	  Rigid Epoxy Glass Acrylic Laminate
    RELSECT   Relative Sector
    REM	  Remark + Remote + Ring Error Monitor
    REN	  Rename
    REP	  Repeat
    REPE	  Repeat while Equal
    REPNE	  Repeat while Not Equal
    REPNZ	  Repeat while Not Zero
    REPZ	  Repeat while Zero
    REQ	  Request
    RES	  Remote Execution Service + Reset + Resolution
    .RES	  Resource (file name extension)
    RET	  Resolution Enhancement Technology [HP] +
    REX	  Relocatable Executable
    REXEC	  Remote Execution
    REXX	  Restructured Extended Executor (language) [IBM]
    RF	  Radio Frequency
    RFC	  Request For Comments [Internet]
    RFD	  Request for Discussion [Internet]
    RFI	  Radio Frequency Interference
    RFP	  Request for Proposal
    RFQ	  Request for Quotation
    RFS	  Remote File Sharing + Remote File System
    RFT	  Revisable Form Text + Rich Text Format
    RFU	  Reserved For Future Use
    RGB	  Red-Green-Blue (color model)
    RI	  Referential Integrity + Ring Indicate
    RIFF	  Resource Interschange File Format [Microsoft]
    RIM	  Remote Installation and Maintenance [Microsoft]
    RIME	  RelayNet International Message Exchange
    RIP	  Raster Image Processor +
    	  Remote Imaging Protocol +
    	  Routing Information Protocol [Novell]
    RIPEM     Riordan's Internet Privacy Enhanced Mail
    RISC      Reduced Instruction Set Computer
    RJE	  Remote Job Entry
    RLE	  Run Length Encoded
    RLL	  Run Length Limited
    RLN	  Remote LAN Node [DCA]
    RLOGIN	  Remote Login
    RLSD	  Received Line Signal Detected
    RLSI	* Ridiculously Large-Scale Integration
    RM	  Reset Mode
    RMA	  Return Material Authorization +
    	  Return to Manufacturer Authorization
    RMB       Right Mouse Button
    RMDIR     Remove Directory
    RMON	  Remote Monitor/Monitoring
    RMP	  Remote Maintenance Processor [IBM]
    RMS	  Record Management Services + Root Mean Square
    RMW       Read-Modify-Write
    RN        Read News [Internet]
    RND	  Random
    RNG	  Random Number Generator
    RNP       Regional Network Provider
    R-O       Read Only
    ROB       Reorder Buffer [Intel]
    ROL       Rotate Left
    ROM	  Read Only Memory
    ROOM      Real-Time Object-Oriented Modeling
    ROP       Raster Operation + RISC Operation
    ROR	  Rotate Right
    ROS	  Read-Only Storage [IBM]
    ROT       Running Object Table
    RPC       Real Procedure Call + Remote Procedure Call
    RPG	  Report Program Generator (Programming Language)
    RPL	  Resident Programming Language +
    	  Requested Privilege Level
    RPN	  Real Page Number
    RPRINTER  Remote Printer [NetWare]
    RPPROM	  Reprogrammable PROM
    RPT	  Repeat
    RPQ	  Request for Price Quotation
    RQBE	  Relational Query By Example [Fox Pro]
    RR	  Real Reality
    RS	  Radio Shack +
    	  Recommended Standard (as in RS-232) [EIA] +
    	  Record Separator + Request to Send
    RSA129	  (129 digit cryptographic security number named after
    	  its inventors: Drs. Ronald L. Rivest, Adi Shamir and
    	  Leonard M. Adelman)
    RSCS	  Remote Spooling Communications System
    RSH	  Remote Shell
    RSL	  Request-and-Status Link
    RSP	  Required Space Character
    RST	  Reset + Restart
    RSTS	  Resource Sharing Time Sharing [Digital]
    RSX	  Real Time Resource Sharing Executive
    RT	  Real Time + RISC Technology + Run Time
    R/T	  Receive/Transmit
    RTAM	  Remote Terminal Access Method
    RTC	  Real-Time Clock
    RTDM	  Real-Time Data Migration
    RTEL	  Reverse Telnet [Internet]
    RTF	  Rich Text Format
    RTL	  Register Transfer Language/Level +
    	  Resistor Transistor Logic + Right-To-Left +
    	  Run Time Library
    RTM	  Response Time Monitor + Runtime Manager [Borland]
    RTMP      Routing Table Maintenance Protocol
    RTOS      Real-Time Operating System
    RTP       Rapid Transport Protocol + Real-Time Protocol
    RTS	  Remote Takeover System + Request To Send
    RTTI	  Runtime Type Information
    RTTY	  Radio Teletypewriter (Communications)
    RTV	  Real Time Video
    RVA	  Relative Virtual Address
    RVI	  Reverse Interrupt
    R/W	  Read/Write
    RWM	  Read-Write Memory
    RX	  Receiver
    RXD	  Receive Data


    (TOP) (UP to R) (DN to T) (BOTTOM)

    SAA	  Systems Application Architecture [IBM]
    SADL	  Synchronous Data Link Control [Racal-Vadic]
    SAINT	* Symbolic Automatic Integrator
    SAL	  Shift Arithmetic Left
    SAM       Serial Access Memory + Sequential Access Method +
              Single Application Mode [Microsoft]
    SANE      Standare Apple Numeric Environment
    SAP       Second Audio Program + Service Access
    	  Point [DEC] + Service Advertising Protocol
    SAP	* Symbolic Assembly Program
    SAR	  Shift Arithmetic Right +
    	  Successive Approximation Register
    SAS	  Sales Accounting System + Single Attached Station +
    	  Single Audio System + Statistical Analysis System
    SASI      Shugert Associates System Interface (SCSI originated
              from SASI)
    SATAN     Security Administrator Tool for Analyzing Networks
    .SAV	  Saved (file name extension)
    SAVDM	  Single Application VDM
    SB	  Sound Board
    SBA	  Scene Balance Algorithms [Kodak]
    SBB	  Subtract With Borrow
    SBC	  Single-Board Computer
    SBCS	  Single-Byte Character Set
    SBI	  Sound Blaster Instrument
    .SC	  Script (file name extension)
    SCADA     Supervisory Control and Data Aquisition
    SCAM      SCSI Configuration Automatically
    SCAS	  Scan String
    SCB	  Subsystem Control Block [IBM]
    SCC	  Serial Communications Controllers +
    	  Serial Controller Chip +
    	  Synchronous Channel Check [IBM]
    SCCS	  Source Code Control System
    SCD	  Standard Color Display
    SCF	  System Control Facility
    SCI.      Science [USENET Newsgroup Category]
    SCLM      Softwre Configuration and Library Management [IBM]
    SCM       Software Configuration Management +
    	  Station Class Mark
    SCO	  Santa Cruz Operation (Software Company)
    SCOPE	  Simple Communications Programming Enironment
    SCP	  Save Cursor Position + Subsystem Control Port +
    	  System Control Program
    SCR	  Silicon Controlled Rectifier
    .SCR	  Script (file name extension)
    SCRN	  Screen (video display)
    SCRS      Scalable Cluster of RISC Systems
    SCSA      Signal Computing System Architecture [Dialogic]
    SCSI	  Small Computer Systems Interface
    SD	  Send Data
    SDA	  Software Disk Array + Source Data Automation +
    	  System Display Architecture [Digital]
    SDB	  Symbolic Debugger [Unix]
    SDD       Software Description Database [Internet]
    SDF       Space Delimited File + Space Delimited Format
    .SDF	  Standard Data Format (file name extension)
    SDI	  Selective Dissemination of Information +
    	  Single Document Interface
    	  Software Development Interface [Mosaic]
    SDK	  Software Developer's Kit [Microsoft]
    SDLC	  Synchronous Data Link Control (protocol)
    SDM       System Development Multitasking
    SDMS      SCSI Device Management System [NCR]
    SDN       Software Defined Network [AT&T]
    SDNS	  Secure Data Network Service
    SDR	  Streaming Data Request
    SDRAM	  Synchronous Dynamic Random Access Memory
    SDS	  Sysops Distribution System
    SD_STB	  Streaming Data Strobe [IBM]
    SDV       Switched Digital Video [AT&T]
    SEA       Standard Extended Attribute [OS/2]
    .SEA	  Self Extracting Archive (file name extension) [Macintosh]
    SEAC	* Name of first computer to use transistors, built by
    	  (National Bureau of) Standards Eastern Automatic
    	  Calculator (Also see SWAC)
    SEAL	  Segmentation and Reassembly Layer (protocol) +
    	  Screening External Access Link [Digital-DEC]
    SEC	  Single Error Correction
    SECAM	  Sequentiel Couleur Avec Memoire
    	  (Sequential Color With Memory)
    SED	  Stream Editor + Stream-Oriented Editor
    SEG	  Segment
    SEH	  Structured Exception Handling
    SEL	  Select
    SEM	  Scanning Electron Microscope +
    	  Standard Electronic Module
    SER	  Serial
    SET	  Softwave Engineering Technology
    .SET	  Driver Set (file name extension) [Lotus 1-2-3] [LDC] +
    	  Image Settings (file name extension) [Paradox]
    SETEXT	  Structure Enhanced Text [Internet]
    SEU	  Smallest Executable Unit
    SF	  Sign Flag
    SFQL	  Structured Full-text Query Language
    SFS       System File Server
    SFT       System Fault Tolerance
    SFX	  Sound Effect(s)
    SGEN	  Signal Generator + System Generator
    SGDT	  Store Global Descriptor Table
    SGM       Shaded Graphics Modeling
    SGML      Standard Generalized Markup Language
    SGR	  Set Graphics Rendition
    S/H	  Sample and Hold
    SHA       Secure Hash Algorithm [NSA]
    SHAR      Shell Archive
    SHG	  Segmented Hypergraphics
    SHL	  Shift Logical Left
    SHR	  Shift Logical Right
    S-HTTP	  Secure Hypertext Transfer Protocol
    .SHW      Show (file name extension)
    SI        Shift-In + Source Index + System Information
    SIC	  Standard Industrial Code
    SID	  Serial Input Data + Station Identification [AT&T] +
    	  Symbolic Interactive Debugger
    SIDF	  System Independent Data Format
    SIDH	  System Identification for Home Systems
    SIDT	  Store Interrupt Descriptor Table
    SIFT	  Stanford Information Filtering Tool
    SIG	  Special Interest Group
    SIGCAT	  Special Interest Group on CD-ROM Applications
    	  and Technology
    SIM	  Simulator
    SIMD	  Single Instruction Multiple Data Stream (processor)
    SIMM	  Single In-line Memory Module
    SIMTEL    Simulation and Teleprocessing
    SIMULA    Simulation (language)
    SIO	  Serial Input/Output (communications driver)
    SIP	  Single In-line Package
    SIPO	  Serial In, Parallel Out
    SIPP	  Single In-line Pin Package
    SIR	  Serial Infrared [Hewlett-Packard]
    SIRDS	  Single-Image Random Dot Stereogram
    SI/SO	  Serial In/Serial Out + Shift In/Shift Out
    SIT	  Special Information Tones
    .SIT	  Stuff-It (compressed file name extension) [Macintosh]
    SLDT	  Store Local Descriptor Table
    SLED	  Single Large Expensive Disk
    SLIP	  Serial Line Interface Protocol
    SLMR	  Silly Little Modem Reader
    SLOSH	  Sea, Lake and Overland Surge from Hurricane (program)
    SLSI	  Super Large-Scale Integration
    SLSS	  Systems Library Subscription Service [IBM]
    SM	  Set Mode + Shared Memory
    SMART     Self-Monitoring Analysis and Reporting Technology
    SMB       Server Message Block (protocol) [MII]
    SMD	  Surface Mounted Device
    SMDS	  Switched Multimedia/Multi-Megabit Data Service
    SMF	  System Manager Facility [Compaq]
    SMI	  System Management Interrupt [Intel]
    SMIF	  Standard Mechanical Interface
    SMIT	  System Management Interface Tool [IBM]
    SMK	  Software Migration Kit [Microsoft]
    SML	  Standard Meta Language
    SMM	  System Mangement Mode [Intel]
    SMP       Simple Management Protocol + Symbolic Manipulation Program +
              Symmetrical Multi-Processing + Symmetric Multiprocessor
    .SMP	  Sample (file name extension)
    SMPC	  Shared Memory Parallel Computer
    SMPS	  Switching Mode Power Supply
    SMRAM	  System Management Random Access Memory
    SMS	  Storage Management Services [NetWare] +
              Storage Management Subsystem/System +
              Systems Management Server [Microsoft]
    SMSW      Store Machine Status Word
    SMT	  Station Management (protocol) +
    	  Surface-Mount Technology
    SMTP	  Simple Mail Transfer Protocol
    SMU	  System Management Utility
    SN	  Serial Number
    S/N	  Signal-to-Noise (Ratio)
    SNA	  Systems Network Architecture [IBM]
    SND	  Sound
    SNEWS     Secure News Server [Internet]
    SNMP      Simple Network Management Protocol
    SNOBOL	  String Oriented Symbolic Language (Progamming Language)
    SNP	  Serial Number/Password [Omen Technology]
    SNR	  Signal-to-Noise Ratio
    SOA       Start Of Authority
    SOC       System On a Chip
    SOC.      Social Issues [USENET Newsgroup Category]
    SOCKS     Socket Secure (server) [Internet]
    SOE	  Standard Operating Environment
    SOH	  Start of Header
    SOHO      Small Office/Home Office
    SOL       Simulation Oriented Language
    SOM	  Start of Message + System Object Model [IBM]
    SONET	  Synchronous Optical Network
    SOP	  Standard Operating Procedures
    SOS	  Silicon On Sapphire + Sophisticated Operating System +
    	  Standards and Open Systems
    SOTA	  State Of The Art
    SOX	  Sound Exchange
    SP	  Service Pack [IBM] + Stack Pointer + System Product
    SPA	  Software Publishers Association
    SPAN	  Space Physics Analysis Network
    SPARC	  Scalable Processor Architecture
    SPC	  Small Peripheral Controller + Statistical Process Control
    SPCL	  Spectrum Cellular Corporation
    SPEC	  Systems Performance Evaluation Cooperative
    SPF	  Shortest Path First + System Programming Facility
    SPI       Service Provider Interface + SCSI Parallel Interface
    SPID      Service Profile Identifier
    SPIKE     Science Planning Intelligent Knowledge-Based
    	  Environment [STScI]
    SPIRES    Stanford Public Information Retrieval System
              [Stanford University]
    SPL       Spooler + System Programming Language [HP]
    .SPL	  Spell Checker (file name extension)
    SPM	  System Performance Monitor [IBM]
    SPOOL	  Simultaneous Peripheral Operations On Line
    SPOT      Shared Product Object Tree [IBM]
    SPP       Sequenced Packet Protocol
    SPPS      Scalable Power Parallel System [IBM]
    SPR       Special Purpose Register + Statistical Pattern Recognition
    SPS	  Standby Power System
    SPSS	  Statistical Package for the Social Sciences
    SPT	  Sectors Per Track
    SPX	  Sequenced Packet Exchange [Novell]
    SQ	  Squeezed (files)
    SQL/DS	  Structured Query Language/Data System [IBM]
    SQRT	  Square Root
    SR	  Shift Register
    SRAM	  Shadow Random Access Memory +
    	  Static Random Access Memory
    SRB	  Source-Route Bridge
    .SRC	  Source (file name extension)
    SRD	  Screen Reader System
    SRM	  Security Reference Monitor
    SRO	  Sharable and Read Only
    SRPI	  Server-Requester Programming Interface
    SRQ	  Service Request
    SRR	  Serially Reusable Resource
    SS	  Stack Segment + Single Sided + Seconds
    SSA	  Serial Storage Architecture
    SSAP	  Source Service Access Point
    SSD       Solid State Disk
    SSEC    * Selective Sequence Electronic Calculator [IBM]
    SSGA	  System Suppport Gate Array
    SSI       Single System Image + Small Scale Integration
    SSL	  Secure Sockets Layer
    SST       Spread-Spectrum Technology +
              Systems Services and Technology
    STA	  Spanning Tree Algorithm
    STB	  Strobe
    STC	  Set Carry Flag
    STD	  Set Direction Flag + Standard
    STDA	  StreetTalk Directory Assistance [Banyan]
    STDAUX	  Standard Auxillary
    STDERR	  Standard Error
    STDIN	  Standard Input
    STDIO.H   Standard Input/Output Header [C Programming Language]
    STDM	  Statistical Time Division Multiplexer
    STDOUT	  Standard Output
    STDPRN	  Standard Printer
    .STF	  Structured File (file name extension) [Lotus Agenda]
    STI	  Set Interrupt Flag
    S/TK	  Sectors Per Track
    STN	  Super-Twist Nematic
    STOS	  Store String
    STP       Secure Transfer Protocol + Shielded Twisted Pair (cable) +
              Signal Transfer Point + Synchronized Transaction Processing
    STR	  Store Task Register + Synchronous Transmitter Receiver
    STRESS	  Structural Engineering System Solver (Programming
    STRUDL	  Structural Design Language (Programming Language)
    STScI	  Space Telescope Science Institute
    STT       Secure Transaction Technology [Microsoft]
    STX       Start of Text
    .STY	  Style (file name extension) [Ventura, Word, WordPerfect]
    SUB	  Subroutine + Substitute + Subtract
    SUN       Sun Microsystems, Inc.
    .SUP      Supplemental Dictionary (file name extension)
    SVC	  Switched Virtual Circuit
    SVGA	  Super Video Graphics Array
    S-VHS	  Super VHS
    SVM	  System Virtual Machine [Microsoft]
    SVR	  Server
    SVR#	  System V Release Number [AT&T]
    S/W	  Software
    SWAC	* Mobile version of SEAC, built for deployment to White Sands,
    	  and named Standards Western Automatic Calculator
    SWAIS	  Simple Wide Area Information Server [Internet]
    SWISH	  Simple Web Indexing System for Humans
    .SWP	  Swap (file name extension)
    .SYL	  Syllabus (file name extension)
    SYLK	  Symbolic Link
    .SYM	  Symbols (file name extension)
    .SYN	  Synonym (file name extension)
    SYNC	  Synchronous
    SYS	  System
    .SYS	  System Configuration (file name extension) +
    	  System Device Driver (file name extension)
    SYSGEN	  System Generator
    SYSLOG	  System Log
    SYSMOD	  System Modification
    SYSOP	  System Operator
    SYSREQ	  System Request
    SZ        Send ZModem [Unix]


    (TOP) (UP to S) (DN to U) (BOTTOM)

    TAD	  Telephone Answering Device
    TAP	  Telelocator Alphanumeric Protoco
    TAPCIS	  The Access Program for the CompuServe
    	  Information Service
    TAPI	  Telephony Applications Programming Interface
    .tar	  Tape Archive (archived file name extension) [Unix]
    .tar.Z	  Compressed Archived files (file name extension) [Unix]
    TAS	  Telephone Access Server
    TASM	  Turbo Assembler [Borland]
    TAXI	  Transparent Asynchronous Tranceiver/Receiver Interface
    TB	  Terabyte (1,000 gigabytes)
    T/B	  Top and Bottom
    TBBS	  The Bread Board System (BBS)
    TBGA	  Tape Ball Grid Array
    .TBK	  Toolbook (file name extension)
    TBU	  Tape Backup Unit
    TC	  Test Control + Transmission Control
    TCL	  Tool Command Language
    TCM	  Trellis-Coded Modulation
    TCP/IP	  Transmission Control Protocol/Internet Protocol
    TD	  Transmit Data
    TDD	  Telecommunications Device for the Deaf
    TDtoDP	  Tablet Coordinates to Display Coordinates
    TDE	  Terminal Display Editor
    .TDF	  Trace Definition File (file name extension) [OS/2] +
    	  Typeface Definition File (file name extension)
    TDI       Transport Device Interface
    TDM       Technical Document Management +
              Time Division Multiplexing
    TDMA	  Time Division Multiple Access
    TDMS	  Terminal Display Management System
    TDP	  Telelocator Data Protocol
    TDSR	  Transmitter Data Service Request
    TDR	  Time Domain Reflectometry
    TE/2	  Terminal Emulator/2 [Oberon]
    TEB	  Thread Environment Block
    TEC	  Tokyo Electronics Corporation
    TED	  Tiny Editor
    TEML	  Turbo Editor Macro Language [Borland]
    TEMP	  Temporary
    TER	  Thermal Eclipse Reading [Sony]
    TERMPWR   Terminator Power
    TFDD	  Text File Device Driver
    TFEL	  Thin-Film Electroluminescent
    .TFM	  Tagged Font Metric (file name extension)
    TFT	  Thin-Film Transistor (screens)
    TFTP	  Trivial File Transfer Protocol
    THD	  Total Harmonic Distortion
    .THD	  Thread (file name extension)
    THOMAS	  The (U.S.) House (of Representatives) Open Multimedia
    	  Access System
    THOR	  Tandy High-Performance Optical Recording
    THR	  Transmit Holding Register
    .THS	  Thesaurus (file name extension)
    TI	  Texas Instruments, Inc.
    TIA	  Telecommunications Industry Association +
    	  The Internet Adapter [Internet]
    TID	  Target ID
    TIES	  Time Independent Escape Sequence
    .TIF	  Tagged Image File (filename extension)
    TIFF	  Tagged Image File Format
    TIGA	  Texas Instruments Graphics Architecture
    TIGER	  Topologically Integrated Geographic Encoding
    	  and Referencing
    TIIAP	  Telecommunications and Information Infrastructure
    	  Assistance Program [NII]
    TIP	  Terminal Interface Processor
    TK/TK	  Track to Track
    TLA	  Three-Letter Acronym
    TLB	  Translation Lookaside Buffer
    TLI	  Transport Layer Interface
    TLU	  Table Lookup
    .TLX	  Telex (file name extension)
    TM	  Trademark
    TMP	  Temporary
    TN	  Twisted Nematic
    TNC	  Terminal Node Controller
    ToC	  Table Of Contents
    TOD	  Time Of Day
    TOP	  Technical and Office Protocol
    TPC	  Transaction Processing Performance Council
    TPI	  Tracks Per Inch
    TPL	  Table Producing Language
    TPM	  Transactions Per Minute
    TPORT	  Twisted Pair Port Transceiver [AT&T]
    TPS	  Transactions Per Second +
    	  Transaction Processing System
    TPW	  Turbo Pascal for Windows
    TQFP	  Thin Quad Flat Pack
    TQM	  Total Quality Management
    TR	  Terminal Ready
    T/R	  Transmit/Receive
    TRADIC	* Transistorized Airborne Digital Computer
    	  (Name of first computer to be entirely
    .TRM	  Terminal (file name extension)
    TRN       Threaded Read News [Internet] + Token Ring Network
    TRON	  The Real-Time Operating System Nucleus
    TS	  Top Secret
    TSA	  Technical Support Alliance
    TSAPI	  Telephony Services Application Program
    	  Interface [AT&T + Novell]
    TSB	  Termination Status Block
    TSO	  Time Sharing Option
    TSR	  Terminate and Stay Resident
    TSS	  Task State Segment + Time Sharing System
    TS/SI	  Top Secret/Sensitive Information
    .TST	  Test (file name extension)
    TSTN	  Triple Supertwisted Nematic
    TSV	  Tab Separated Values
    TT	  Typewriter Text
    TTCN      Tree and Tabular Combined Notation
    .TTF      TrueType Font (file name extension)
    TTL	  Transistor-Transistor Logic
    TTP       Thermal-Transfer Printing
    TTS       Text-To-Speech + Transaction Tracking System
    TTY	  Teletype
    TUI	  Text-Based User Interface [WordPerfect]
    TUMS      Table Update and Management System [Stanford University]
    .TUT      Tutorial (file name extension)
    TVF	  Table of contents Verbosely from File [UNIX]
    TVI	  Television Interference
    TWX	  Teletypewriter Exchange Service
    TXD	  Transmit Data
    .TXF	  Tax Exchange Format (file name extension)
    TXT	  Text
    TXT2STF   Text To Structured File [Lotus Agenda]


    (TOP) (UP to T) (DN to V) (BOTTOM)

    UA	  User Agent + User Area
    UAE	  Unrecoverable Application Error
    UART	  Universal Asynchronous Receiver/Transmitter
    .UC2	  Compressed File (file name extension) [UltraCompressor]
    UCL	  Universal Communications Language
    UCS       Unicode Conversion Support + Universal Character Set
    UCT       Universal Coordinated Time
    UDC       User Defined Commands
    UDE	  Universal Data Exchange
    UDF	  User Defined Functions
    UDP	  User Datagram Protocol
    UDT       Uniform Data Transfer
    UFS       Unix File System
    UG	  User Group
    UI	  Unix International + User Interface
    UID	  User Identifier
    UIMS	  User Interface Management System
    UL	  Underwriters Laboratories +
    	  Unordered List + Upload
    ULA	  Uncommitted Logic Array
    ULN	  Universal Link Negotiation
    ULSI	  Ultra Large Scale Integration
    UMA       Unified Memory Architecture
    UMB       Upper Memory Block [LIM/AST]
    UNC	  Universal Naming Convention +
    	  Uuencoded Netnews Collator [Unix]
    UNCOL	  Universal Computed Oriented Language
    UNI	  User-Network Interface
    UNICOM	  Universal Integrated Communication (System)
    UNICOS	  Universal Compiler FORTRAN compatible
    UNIVAC	  Universal Automatic Computer
    UNIX	  (AT&T Bell Laboratories Operating System)
    UNMA	  Unified Network Management Architecture
    UP        Uniprocessor
    UPC       Universal Product Code
    UPG       Upgrade
    UPL       User Program Language
    UPM	  Unix Programmer's Manual +
    	  User Profile Management [IBM]
    UPS	  Uninterruptible Power Supply +
    	  Uninterruptible Power System
    URC	  Uniform Resource Characteristics +
    	  Uniform Resource Citation
    UREP	  Unix RSCS Emulation Protocol (protocol)
    URI	  Uniform Resource Identifier
    URL	  Uniform Resource Locator
    URN	  Uniform Resource Name/Number
    US	  Unit Separator
    USART	  Universal Synchronous-Asynchronous Reciever/Transmitter
    USB	  Universal Serial Bus [Intel]
    USENET	  User's Network [Internet]
    USERID	  User Identification
    USQ	  Unsqueezed (files)
    USR	  US Robotics (corporation)
    USRT	  Universal Synchronous Receiver/Transmitter
    USSA	  User Supported Software Association (United Kingdom)
    UT	  User Terminal
    UTC	  Coordinated Universal Time
    UTI	  Universal Text Interchange/Interface
    UTP	  Unshielded Twisted-Pair (cable)
    UU	  Uuencode/Uudecode
    UUCP	  Unix-To-Unix Copy Program
    UUD	  UUDecoding [Unix]
    UUE	  UUEncoding [Unix]
    UUI	  User-To-User Information [AT&T]
    UV	  Ultraviolet


    (TOP) (UP to U) (DN to W) (BOTTOM)

    VA	  Virtual Address
    VAD	  Value Added Dealer
    VADD	  Value Added Disk Driver
    VAL	  Value + Voice Application Language
    .VAL	  Validity Checks (file name extension) [Paradox]
    VAM	  Virtual Access Method
    VAN	  Value Added Network
    VAP	  Value Added Process
    VAR	  Value Added Reseller + Value Added Retailer + Variable
    VAST      Variable Array Storage Technology
    VAX/VMS   Virtual Address Extension/Virtual Memory System [DEC]
    VB	  Variable Block + Visual Basic [Microsoft]
    VBA	  Visual Basic for Applications [Microsoft]
    VBE/AI	  Vesa Bios Extension/Audio Interface
    vBNS      Very High Speed Backbone Network Service [MCI + NSF]
    VBR       Variable Bit Rate
    VBRUN	  Visual Basic Runtime
    .VBX	  Visual Basic Extension (file name extension)
    VCD	  Virtual Communications Driver
    VCL       Visual Component Library
    VCOS      Visual Caching Operating System [AT&T]
    VCPI      Virtual Control Program Interface
    VCR	  Video Cassette Recorder
    VDD	  Virtual Device Driver
    VDDM	  Virtual Device Driver Manager
    VDE	  Video Display Editor + Visual Development Environment
    VDISK	  Virtual Disk
    VDM	  Virtual DOS Machine [IBM]
    VDMAD	  Virtual Direct Memory Access Device [Microsoft]
    VDS	  Virtual DMA Services
    VDT	  Video Dial Tone + Video Display Terminal
    VDU	  Video Display Unit + Visual Display Unit
    VEGA	  Video-7 Enhanced Graphics Adapter [Video-7, Inc.]
    VEMM	  Virtual Expanded Memory Manager
    VER	  Verify + Version
    VERONICA  Very Easy Rodent-Oriented Net-Wide Index to
    	  Computer Archives [Internet]
    VERR	  Verify Read Access
    VERW	  Verify Write Access
    VESA	  Video Electronics Standards Association
    VF	  Virtual Floppy
    VFAT	  Virtual File Allocation Table [Microsoft]
    V.FC      Version.First Class (communications standard)
    VFD       Vacuum Fluorescent Display
    VGA	  Video Graphics Array
    VGC	  Video Graphics Controller
    VHDL	  VHSIC Hardware Description Language
    VHS	  Very High Speed + Video Home System +
    	  Virtual Host Storage
    VHSIC	  Very High Speed Integrated Circuit
    VI	  Visual Interactive (editor) [UNIX]
    VIE	  Virtual Information Environment
    VIF	  Virtual Interface + Virtual Interrupt Flag
    VIM	  Vendor Independent Mail +
    	  Vendor Independent Messaging + Video Interface Module
    VIO	  Video Input/Output + Virtual Input/Output
    VINES	  Virtual Networking System [Banyan]
    ViP       Visual Programming [Lotus]
    VIP       Variable Information Processing +
    	  Video Information Provider +
    	  Virtual Interrupt Pending
    VIPER	  Verifiable Integrated Processor for
    	  Enhanced Reliability
    VIS	  Video Information System [Tandy] +
    	  Voice Information System
    VJ HEADER Van Jacobsen Header (compression) [Unix]
    VL-BUS	  Vesa Local-Bus [VESA]
    VLF	  Very Low Frequency
    VLIW      Very Large Instruction Word
    VLM	  Virtual Loadable Module
    VLSI	  Very Large Scale Integration
    VLSIPS	  Very Large Scale Immobilized Polymer Synthesis
    VLT	  Variable List Table
    VM	  Virtual Machine + Virtual Memory
    VMA	  Virtual Memory Address
    VMB	  Virtual Machine Boot
    VME	  Virtual Memory Environment
    VMM	  Virtual Machine/Memory Manager
    VMOS	  Vertical MOS
    VMS	  Virtual Memory System + Voice Message System
    VMT	  Virtual Memory Technique
    VNA	  Virtual Network Architecture
    VOC	  Creative Voice (format) [Sound Blaster]
    VOD	  Video On Demand
    VOL	  Volume
    VOM       Volt-Ohm-Milliammeter
    VOS	  Verbal Operating System
    VPD       Virtual Printer Device + Vital Product Data [IBM]
    VPDN	  Virtual Private Data Network
    VPDS	  Virtual Private Data Service [MCI]
    VPE       Visual Programming Environment
    VPL       Virtual Programming Language
    VPN       Virtual Page Number + Virtual Private Network
    VPS       Voice Processing System
    VPSC      Vault, Process, Structure, Configuration
    VPT       Virtual Print Technology [Dataproducts]
    VR        Virtual Reality + Voltage Regulated/Regulator
    VRAM	  Video Random Access Memory
    VRE	  Voltage Regulated Extended
    VRML      Virtual Reality Modeling Language
              (originally named Virtual Reality Markup Language)
    VROOMM    Virtual Real-time Object Oriented
    	  Memory Manager [Borland]
    .VRS	  WordPerfect Graphics Driver (file name extension)
    VRT       Voltage Regulation Technology [Intel]
    VRU       Voice Response Unit
    VS	  Virtual Storage
    VSAM	  Virtual Storage Access Method
    VSAT	  Very Small Aperture Terminal
    VSE	  Virtual Storage Extended
    VSF	  Vertical Scanning Frequency
    VSIO	  Virtual Serial Input Output
    VSLI	  Very Large Scale Integration
    VSM       Virtual Shared Memory + Virtual Storage Management +
              Visual System Management [IBM]
    VSN       Volume Serial Number
    VSOS	  Virtual Storage Operating System
    VSYNC	  Vertical Sync
    VT	  Vertical Tab
    VTAM	  Virtual Telecommunications Access Method [IBM]
    VUI	  Video User Interface
    VUP	  VAX Unit of Performance
    VMS	  Virtual Memory System + Voice Message System
    VWB	  Visual WorkBench [Microsoft]
    VxD	  Virtual Extended Driver [Microsoft]
    .VXD      Virtual Device (file name extension) [Microsoft]


    (TOP) (UP to V) (DN to X) (BOTTOM)

    W/	  With
    W3	  (see WWW)
    W3A	  World Wide Web Applets
    W4	  What-Works-With-What
    WABI      Windows Application Binary Interface [SunSoft]
    WAIS	  Wide Area Information Server
    WAITS	  Wide Area Information Transfer System
    WAN	  Wide Area Network
    WATS	  Wide Area Telecommunications Service
    .WAV	  Waveform Audio (file name extension)
    WC	  Word Count
    WDL	  Windows Driver Library [Microsoft]
    WDRAM	  Windows Dynamic Random Access Memory
    WELL	  Whole Earth 'Lectronic Link (BBS)
    WFW	  Windows For Workgroups [Microsoft]
    WGS	  Work Group System
    WHAM	  Waveform Hold and Modify [Microsoft]
    WHC	  Workstation Host Connection
    WINE	  Windows Emulator
    WINForum  Wireless Information Networks Forum
    WINS      Windows-Internet Naming Service [Microsoft]
    WINSOCK   Windows Open Systems Architecture [Microsoft] +
    	  Windows Sockets
    WINWORD   Word For Windows [Microsoft]
    WISE	  WordPerfect Information System Environment
    WIT       Web Interactive Talk [Internet]
    .WKB      Workbook (file name extension) [WordPerfect]
    .WKE	  Worksheet (file name extension) [Lotus 1-2-3] [LDC]
    .WKQ	  Spreadsheet (file name extension) [BORQU]
    .WKS	  Worksheet (file name extension) [Lotus 1-2-3] [LDC]
    .WKZ	  Compressed Spreadsheet (file name extension) [BORQU]
    .WK1	  Worksheet (file name extension) [Lotus 1-2-3] [LDC]
    WMC       Workflow Management Coalition
    .WMF      Windows Metafile Format (file name extension) [Microsoft]
    WNIC	  Wide-Area Network Interface Co-Processor
    WNIM	  Wide-Area Network Interface Module
    W/O	  Without
    WORM	  Write Once, Read Many
    WOS	  Workstation Operating System
    WOSA	  Windows Open Services/Systems Architecture [Microsoft]
    WP	  WordPerfect + Word Processing + Write Protected
    .WPG	  WordPerfect Graphics (file name extension)
    WPHD	  Write-Protect Hard Disk
    .WPK	  Keyboard (file name extension) [WordPerfect]
    WPM	  Words Per Minute
    .WPM	  Macro (file name extension) [WordPerfect]
    WPOS	  Workplace Operating System
    WPS	  Windows Printing System [Microsoft] +
    	  Workplace Shell [OS2]
    .WQ1	  Spreadsheet (file name extension) [BORPQU]
    .WQ!	  Compressed Spreadsheet (file name extension) [BORPQU]
    WRAM      Windows Random Access Memory
    .WRI      Write (file name extension)
    WS	  WordStar + Workstation
    WT	  Write Through
    WWIS	  World Wide Information System [Internet]
    WWW	  World-Wide Web [Internet]
    WYSBYGI   What You See Before You Get It
    WYSIWYG   What You See Is What You Get


    (TOP) (UP to W) (DN to Y) (BOTTOM)

    XA	  Extended Architecture + Extended Attribute
    XAPIA	  X.400 Application Program Interface Association
    X2B	  Hexadecimal to Binary [REXX]
    XBM	  X Windows Bitmap
    X2C	  Hexadecimal to Character [REXX]
    XCHG	  Exchange
    XCMD	  External Command
    XCOPY	  Extended Copy
    X2D	  Hexadecimal to Decimal [REXX]
    XDF	  Extended Density Format [IBM]
    XDR	  Extended/External Data Representation
    XFCN	  External Function
    XGA	  Extended Graphics Array [IBM]
    XID	  Exchange Identifier
    XIOS	  Extended Input/Output System
    XLAT	  Translate
    XLM	  Excel Macro Language [Microsoft]
    XMIT	  Transmit
    XMM	  Extended Memory Manager [LIM/AST]
    XMS	  Extended Memory Specification [LIM/AST]
    XNS	  Xerox Network System (protocol) [Xerox]
    XOFF	  Transmitter Off
    XON	  Transmitter On
    XOR	  Exclusive OR (Also EOR)
    XPRM      Xerox Print Resources Manager [Xerox]
    XRT       Extensions for Real-Time
    XSMD	  Extended Storage Module Drive (interface)
    XTAL	  Crystal
    XTCLK	  External Transmit Clock


    (TOP) (UP to X) (DN to Z) (BOTTOM)

    YAM	  Yet Another Modem [Omen Technology]
    YAHOO	  Yet Another Hierarchically Officious Oracle [Internet]


    (TOP) (UP to Y) (DN to APPENDIX A) (BOTTOM)

    .z	  Packed file (file name extension - using Pack/Unpack
    	  program)..lower case z..[Unix]
    .Z	  Compressed file (file name extension - using
    	  Compress/Uncompress program)..upper case Z..[Unix]
    ZBR	  Zone Bit Recording
    Z-CAV	  Zoned Constant Angular Velocity
    ZDL	  Zero Delay Lockout
    ZDS	  Zenith Data Systems
    ZIF	  Zero-Insertion Force (socket)
    ZIP	  Zigzag In-Line Package +
    	  Zone Improvement Plan (ZIPcode)
    .ZIP	  Compressed File (file name extension) [PKWare]
    .ZOO	  Compressed File (file name extension) [Dhesi]
    ZSL	  Zero Slot LAN
    ~	  Tilde
    *	  Wildcard character (asterisk)
    *.*	  Star-Dot-Star (represents
    	  Any file name.Any file name extension)
    .$$$	  Temporary File (file name extension)
    3COM	  3 Com Corporation (The 3 Coms are
    	  Computer, Communications and Compatability)
    3GL	  Third Generation Language (procedural language)
    4GL	  Fourth Generation Language (procedural language)
    6DOF	  Six Degrees Of Freedom

    UUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUU UU UU UU BABEL: A GLOSSARY OF UU UU COMPUTER ORIENTED ABBREVIATIONS AND ACRONYMS UU UU UU UUUUUUUUUUUUUUUUUUUU Version 96A UUUUUUUUUUUUUUUUUUUUU Copyright (C) 1989-1996 Irving Kind All Rights Reserved c/o K & D, One Church Lane, Baltimore, MD 21208 Jan 1996 version = BABEL96A Jan 1997 version = BABEL97A May 1996 version = BABEL96B May 1997 version = BABEL97B Sep 1996 version = BABEL96C Sep 1997 version = BABEL97C


    (TOP) (UP to Z) (DN to APPENDIX B) (BOTTOM)

    Method 1 - WWW
       To get the babelxxx.html file via World Wide Web, use this URL:
    Method 2 - GOPHER
       To get the babelxxx.txt file via Gopher:
       If you have access to a Gopher client, gopher directly to:
       From the Main Menu, select "Temple University Computer
    Resources and Information" and then "Internet & Bitnet
    Information (Help-Net)".  Then select "Glossary of Computer
    Abbreviations and Acronyms (BABEL96A.TXT)".
    Method 3 - FTP
       To get the babelxxx.txt file, if you have ftp access via The
    Internet, type these commands in lower case text:
    At Login   : anonymous
    At Password: your email address
    cd /pub/info/help-net
    get babel96a.txt
    Method 4 - LISTSERV
       To get the babelxxx.txt file via Listserv if on The Internet:
       Send e-mail to:
    Subject line should be left blank.  In body of the message, type:
    Method 5 - BITNET
       To get the babelxxx.txt file via Listserv for Bitnet users:
       Send e-mail to:  listserv@templevm
    Subject line should be left blank.  In body of the message, type:
    NOTE for all methods:
             After Jan 1, 1996 request BABEL96A
             After May 1, 1996 request BABEL96B
             After Sep 1, 1996 request BABEL96C



        The following examples are included to serve as a brief
    introduction to what may be found when reading email and news
    groups and when using IRC on the Internet.
    			- - - - - - -
        In email and news, "smiley faces", rather than words, are used
    to express the writer's feelings.  Turn your head to the side to
    read them.
    	:-)	Smile		:-D	Laughing
    	:-]	Smirk		:-(	Frown
    	;-)	Wink		:-X	Close-mouthed
    	8-)	Wide-eyed	:-O	Open-mouthed
            <jk>    Just kidding    <g>     Grin
                            - - - - - - -
        In email and during on-line conversations, a variety of letter
    groups are used to abbreviate the writer's comments, such as:
        BRB   Be right back 	IMHO   In my humble opinion
        BTW   By the way            ROFL   Rolling on the floor laughing
        FOAF  Friend of a friend	TIA    Thanks in advance



                            COUNTRY DOMAIN NAMES
        At the present time there are over 200 recognized Country Domain
    names.  Two-letter abbreviations that represent the country names are
    used in addresses seen on the Internet.  The following names (68 to date)
    represent the country of origin where someone has downloaded BABEL.  This
    list should be useful when checking the origin of your own mail.
            .ae     United Arab Emirates
            .am     Armenia
            .ar     Argentina
            .at     Austria
            .au     Australia
            .be     Belgium
            .bg     Bulgaria
            .bh     Bahrain
            .br     Brazil
            .ca     Canada
            .ch     Switzerland
            .cl     Chile
            .cn     China
            .co     Columbia
            .cr     Costa Rica
            .cy     Cyprus
            .cz     Czech Republic
            .de     Germany
            .dk     Denmark
            .do     Dominican Republic
            .ec     Ecuador
            .ee     Estonia
            .eg     Egypt
            .es     Spain
            .fi     Finland
            .fr     France
            .gb     Great Britian (UK)
            .gl     Greenland
            .gr     Greece
            .hk     Hong Kong
            .hr     Croatia
            .hu     Hungary
            .id     Indonesia
            .ie     Ireland
            .il     Israel
            .in     India
            .is     Iceland
            .it     Italy
            .jp     Japan
            .kr     Korea (South)
            .kw     Kuwait
            .li     Liechtenstein
            .lu     Luxembourg
            .lv     Latvia
            .mo     Macau
            .my     Malaysia
            .mx     Mexico
            .nl     Netherlands
            .no     Norway
            .nz     New Zealand
            .pe     Peru
            .ph     Phillipines
            .pl     Poland
            .pt     Portugal
            .ro     Romania
            .ru     Russian Federation
            .se     Sweden
            .sg     Singapore
            .si     Slovenia
            .sk     Slovakia (Slovak Republic)
            .th     Thailand
            .tr     Turkey
            .tt     Trinidad and Tobago
            .tw     Taiwan
            .us     United States
            .uy     Uruguay
            .ve     Venezuela
            .za     South Africa