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UUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUU
UU UU
UU BABEL: A LISTING OF UU
UU COMPUTER ORIENTED ABBREVIATIONS AND ACRONYMS UU
UU UU
UUUUUUUUUUUUUUUUUUUU Version 92A UUUUUUUUUUUUUUUUUUUUU
Copyright (c) 1989-1992 Irving Kind All Rights Reserved
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 these
combinations of letters used at one time or another in magazines,
newspapers or handbooks. They apply to personal computers,
mainframes, communications, programming, networking, etc......you
name it. This list is free for anyone to use, but with no
guarantees as to its completeness. That is why I am now requesting
your help. Look over the definitions and let me have your
feedback. If you can fill in any of the blanks that I have
questioned; or, 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, my thanks in advance.
In the meantime, print out a copy of this list and keep it on
your desk. I know you will find it useful. Updates to this
listing will be issued three times a year; in January, May and
September. You may download the latest version of BABEL from your
favorite Bulletin Board. If any Bulletin Board SYSOP, Computer
Club Librarian, Organization or Teacher sends me a formatted disk
with a disk mailer, stamped with return postage, I will return the
disk with the latest updated version of BABEL at no charge. See
end of listing for additional information about updates.
Letter groups followed with " * " were used before 1965.
At some of these, I have noted historical information.
And please remember to ECAL.
Irving Kind
c/o K & D
One Church Lane
Baltimore, MD 21208
Jan 1992 version = BABEL92A Jan 1993 version = BABEL93A
May 1992 version = BABEL92B May 1993 version = BABEL93B
Sep 1992 version = BABEL92C Sep 1993 version = BABEL93C
UUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUU
UU UU
UU BABEL: A LISTING OF UU
UU COMPUTER ORIENTED ABBREVIATIONS AND ACRONYMS UU
UU UU
UUUUUUUUUUUUUUUUUUUU Version 92A UUUUUUUUUUUUUUUUUUUUU
Copyright (c) 1989-1991 Irving Kind All Rights Reserved
AA Auto Answer
AAP Applications Access Point [DEC]
AASP ASCII Asynchronous Support Package
AAT Average Access Time
ABEND Abnormal End
ABIOS Advanced BIOS
ABS Absolute
ABT Abort
AC Automatic Computer + Alternating Current
ACC Accumulator
ACD Automated Call Distribution
ACE Advanced Computing Environment [SCO]
ACF Access Control Field
ACK Acknowledgment
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
ACU Automatic Calling Unit
A/D Analog to Digital
ADA Automatic Data Acquisitions +
(Programming Language named after Agusta Ada Lovelace)
ADC Add with Carry + Analog to Digital Converter
ADCCP Advanced Data Communication Control Procedures
ADF Automatic Document Feed
ADL Address Data Latch
ADLAT Adaptive Lattice Filter
.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 System +
Automatic Distribution System
ADSC Address Status Changed
ADSR Attack, Decay, Sustain, Release
ADT Application Data Types
ADU Automatic Dialing Unit
AE Above or Equal
AEB Analog Expansion Bus [Dialogic]
AF Auxilary carry Flag
AFC Automatic Font Change
AGC Automatic Gain Control
AI Analog Input + Artificial Intelligence
AIA Applications Integration Architecture [DEC]
AIIM Association for Information and Image Management
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 Language (see IAL)
ALR Advanced Logic Research, Inc.
ALT Alternate (mode)
ALU Arithmetic Logic Unit
AMD Advanced Micro Devices
AMMA Advanced Memory Management Architecture [Everex Systems]
ANCOVA Analysis of Covariance
ANI Automatic Number Identification
ANOVA Analysis Of Variance
ANSI American National Standard Institute
AO Analog Output
AOE Application Operating Environment [AT&T]
AOS Add Or Subtract
AP Adjunct Processor + Application Processor
A/P Accounts Payable
APA Arithmetic Processing Accelerator +
All Points Addressable
APAREN Address Parity Enable [IBM]
APCUG Association of PC User Groups
API Application Program Interface +
Application Programming Interface
APL A Programming Language (Mathematics)
.APP Application (file name extension) [R:Base]
APPC Advanced Program-to-Program Communication
APPN Advanced Peer-to-Peer Networking [IBM]
APSE ADA Programming Support Environment
APT Address Pass Through +
Automatically Programmed Tools
A/R Accounts Receivable
.ARC Archive (file name extension)
ARCA Advanced RISC Computing Architecture
ARL Adjusted Ring Length
ARLL Advanced Run Length Limited
ARM Asynchronous Response Mode
ARMA Association of Records Managers and Administrators
ARP Address Resolution Protocol [Novell]
ARPL Adjust Requested Privilege Level
ARTIC A Real-Time Interface Copressor [IBM]
ARQ Automatic Repeat Request
ARU Audio Response Unit
ASAP As Soon As Possible +
Automatic Switching And Processing
.ASC ASCII text (file name extension)
ASCII American Standard Code for Information Interchange
ASIC Application-Specific Integrated Circuit
ASIT Advanced Security and Identification Technology
.ASM Assembler Source Language (file name extension)
ASP Association of Shareware Professionals
ASPS Advanced Signal Processing System
ASR Automatic Send-Receive + Automatic Speech Recognition
ASYNC Asynchronous
AT Advanced Technology + Attention
ATA AT Bus Attachment
ATDP Attention Dial Pulse
ATDT Attention Dial Tone
ATE Automated Test Equipment
ATG Advanced Technology Group
ATH Attention Hang-Up
ATM Adobe Type Manager + Asynchronous Transfer Mode +
Automated Teller Machine
ATR Automatic Terminal Recognition
ATS Administrative Terminal System +
Apple Terminal Services
AT&T American Telephone and Telegraph
ATTN Attention
ATTRIB Attribute (also ATR)
AUDIT Automated Data Input Terminal
AUI Attached Unit Interface
AUTO Automatic
AUX Auxiliary + (First Serial Port)
AVA Audio Visual Authoring [IBM]
AVC Audio Visual Connection [IBM]
AVG Average
AVI Audio Visual Interleaved [Microsoft]
AX Architecture Extended + Automatic Transmission
BAK Binary Adaption Kit [Microsoft]
.BAK Backup (file name extension)
BAL Basic Assembly Language
BAM Boyan Action Module
BARTS Bell Atlantic Regional Timesharing
.BAS Basic Language (file name extension)
BASIC Beginner's All-purpose Symbolic Instruction Code
.BAT Batch Processing (file name extension)
BBS Bulletin Board System
BCD Binary Coded Decimal
BCL Batch Command Language
BCPL Basic Computer Programming Language
BCR Byte Count Register
BDOS Basic Disk Operating System
BE Below or Equal
BEL Bell
BELLCORE Bell Communications Research
BF Bad Flag
B/F Background/Foreground
BGE Branch if Greater or Equal
.BGI Borland Graphic Interface (file name extension)
BGT Branch if Greater Than
BHI Branch if Higher
BHIS Branch if Higher or Same
BI Binary Input
.BIB Bibliography (file name extension)
BIM Beginning of Information Marker
.BIN Binary (file name extension)
BINAC * Binary Automatic Computer
BIOS Basic Input/Output System
BIS Business Information System
BiSYNC (See BSYNC)
BIT Binary digit
BIX Byte Information Exchange (BBS)
.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
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 Batch Message Processing Program
.BMP Bitmap (file name extension) [Windows]
BNE Branch if Not Equal
BO Binary Output
BOM Beginning Of Message
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
BRI Basic Rate Interface + Brain Response Interface
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 Standard Distribution
BSF Bit Scan Forward
BSI British Standards Institute
BSR Bit Scan Reverse
BSV BASIC Bsave Graphics (file name extension)
BSY Busy
BSYNC Binary Synchronous Communications (protocol)
BT Bit Test
BTAM Basic Telecommunications Access Method [IBM]
BTC Bit Test and Complement
BTP Batch Transfer Program
BTR Bit Test and Reset
BTS Bit Test and Set
BUF Buffer
BWM Block-Write Mode
BYTE Binary Element String
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
CAE 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 Central Arbitration Point +
Computer Aided Publishing
CAPD Computing To Assist Persons With Disabilities [Johns
Hopkins University]
CAPS Capitals (Upper Case Letters) +
Cassette Programming System
CAS Column Address Select +
Communicating Applications 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)
CATV Community Antenna Television
CAV Constant Angular Velocity
CBCR Channel Byte Count Register
CBL Computer Based Learning
.CBL COBOL source code (file name extension)
CBT Computer Based Training
CBW Convert Byte to Word
CBX Computer-Controlled Branch Exchange
CC Cluster Controller
CCD Charged-Coupled Device
CCFT Cold Cathode Fluorescent Tube
CCITT Consultative Committee for International
Telegraph and Telephone
CCP Console Command Processor
CCS Common Communications Support
CD Carrier Detect + Change Directory +
Collision Detection + Color Display + Compact Disk
C/D Control Data
CDA Compound Document Architecture [DEC]
CDC Control Data Corporation
CD_CHRDY Card Channel Ready [IBM]
CDE Complex Data Entry
.CDF Comma Delimited Format (file name extension)
CD-I Compact Disk - Interactive
CDOS Concurrent Disk Operating System
CDL Computer Design Language
CD-RDx Compact Disk - Read Only Memory Data Exchange Standard
CD-ROM Compact Disk - Read Only Memory
CDR Call Detail Record + Call Detail Recording
CDRL Contract Data Requirements List
CD-RTOS Compact Disk - Real Time Operating System
CDS Current Directory Structure
CD-V Compact Disk - Video
CE Cache Enable + Chip Enable + Collision Elimination +
Convert Enable
CEG Continuous Edge Graphic
CEI Conducted Electromagnetic Interference
.CFG Configuration (file name extension)
CGA Color Graphics Adapter
CGI Computer Generated Images +
Computer Graphics Interface
.CGM Computer Graphics Metafile (file name extension) +
Graph (file name extension) [Lotus 1-2-3] [LDC]
CHAR Character
CHCK Channel Check
CHGRP Change Group
.CHK CHKDSK (file name extension)
CHKDSK Check Disk
CHMOD Change Mode
CHOWN Change Owner
CHP Chapter
CHR Character
CICS/VS Customer Information Control System/
Virtual Storage [IBM]
CIM CompuServe Information Manager +
Computer Integrated Manufacturing
CIOCS Communication Input/Output Control System
CIP Command Interface Port
CIRC Circular Reference
CIS CompuServe Information Service +
Computer Information Systems
CISC Complex Instruction Set Computer
CKD Count Key Data (device)
CLAR Channel Local Address Register
CLC Clear Carry Flag
CLD Clear Direction Flag
CLI Clear Interrupt Flag + Command Line Interface
CLIST Command List
CLK Clock
CLNP Connectionless Network Protocol
.CLP Clipboard (file name extension) [Windows]
CLS Clear Screen
CLTS Clear Task Switch Flag
CLV Constant Linear Velocity
CM Centimeter + Control Mark + Corrective Maintenance
CMA Concert Multi-thread Architecture
CMC Communication Mangement Configuration +
Complement Carry Flag
.CMD Command (file name extension)
CMIP Common Management Information Protocol
CMIS Common Management Information System
CML Current Mode Logic
CMMU Cache/Memory Management Unit [Motorola]
CMOS Complementary Metal-Oxide Semiconductor
CMP Compare + Computer
CMPS Compare word String
CMS Code Management System + Compiler Monitor System +
Conversation Monitor System
CMY Cyan-Magenta-Yellow (color model)
CMYK Cyan-Magenta-Yellow-Black (color model)
CNC Computerized Numerical Control
.CNF Configuration (file name extension)
CNG Calling (tone)
CNVT Convert
CO Central Office + Command Output + Convert Out
.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)
COEM Commercial Original Equipment Manufacturer
COGO Coordinate Geometry (Programming Language)
COL Computer Oriented Language
.COM Command (file name extension)
COMDEX Computer Dealers Exposition
COM1 First serial Port (asynchronous port)
COM2 Second serial Port
COM3 Third serial Port
COM4 Fourth serial Port
COMP Compare + Communications
COMSAT Communications Satellite Corporation
CON Console (includes Keyboard and Screen)
CONFIG Configuration
COS Compatible Operating System
COSMOS Computer System for Mainframe Operations
CP Copy Protected
CPA Certified Public Accountant
CPE Central Processing Element +
Customer Premise Equipment +
Customer Provided Equipment
CPG Clock Pulse Generator
CPI Characters Per Inch + Clock Per Instruction +
Common Programming Interface [IBM]
.CPI Code Page Information (file name extension) [MS-DOS]
CPL Current Privilege Level
CP/M Control Program for Microcomputers
CPS Characters Per Second + Cycles Per Second
CPT Command Pass Through
CPU Central Processing Unit
CR Carriage Return
CRC Cyclic Redundancy Check
CRF Cross Reference File
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
CSAR Channel System Address Register
CSG Constructive Solid Geometry +
Consulting Services Group [Lotus]
CSL Computer Sensitive Language
CSMA Carrier Sense Multiple Access
CSP Commercial Subroutine Package +
CompuCom Speed Protocol [CompuCom]
CSTA Computer-Supported Telephony Applications
C&T Chips and Technologies
CTOS Computerized Tomography 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
CUF Cursor Forward
CUI Common User Interface [IBM]
CUP Cursor Position
CUPID Completely Universal Processor I/O Design [AST]
.CUR Cursor (file name extension)
CUU Cursor Up
CVGA Color Video Gaphics Array
CVIA Computer Virus Industry Association
CWD Convert Word to Double Word
CYL Cylinder
CYMK Cyan-Yellow-Magenta-Black (color model)
D/A Digital to Analog
DAA Data Access Arrangement +
Decimal Adjust for Addition
DAC Digital to Analog Converter
DAL Data Access Language [Apple Computer] +
Disk Access Lockout
DAM Data Acquisition and Monitoring
DAP Data Access Protocol [DEC]
DAS Decimal Adjust for Subtraction
DASD Direct Access Storage Device
DAT Digital Audio Tape
.DAT Data (file name extension)
DATACOM Data Communications
.DBF Database (file name extension)
DB Data Base + Data Buffer
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
DCA Digital Communications Associates +
Document Content Architecture
DCAF Distributed Console Access Facility [IBM]
DCB Disk Coprocessor Board [Novell]
DCC Display Combination Code
DCD Data Carrier Detect
DCE Data Communications Equipment +
Distributed Computing Environment [OSF] +
Distributed Computing Equipment
DCF Data Communication Facility [IBM] +
Data Count Field [IBM]
DCL Declaration + DEC Command Language [DEC] +
Device Clear + Digital Control Logic +
Digital Command Language [Digital]
DCS Data Collection System + Data Control System
.DCT Dictionary (file name extension)
DD Day + Digital Display + Double Density
DDD Direct Distance Dialing
DDE Direct Data Entry + Dynamic Data Exchange [Microsoft]
DDEML Dynamic Data Exchange Management Library [Microsoft]
DDL Data Definition Language + Data Description Language
DDM Distributed Data Management
DDS Design Data Sheet + Digital Data Storage
DEC Decrement + Device Clear +
Digital Equipment Corporation
.DEF Definitions + Defaults (file name extensions)
DEL Delete
.DEM Demonstration (file name extension)
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
DFS Distributed File System
DFT Diagnostic Funtion Test + Discrete Fourier Transform +
Distributed Function Terminal
DFU Data File Utility
DGIS Direct Graphics Interface Standard
DI Data In + Destination Index
DIA Document Interchange Architecture [IBM]
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
DIN Deutsche Industrie Norm (German equivalent of EIA)
DIO Data Input-Output
DIP Dual In-line Package
DIR Directory (file)
DIS Dynamic Impedance Stabilization [CompuCom]
DISP Displacement (offset)
DIV Divide
DIW D-Inside Wire [AT&T]
DL Download
DL/1 Data Manipulation Language 1 [IBM]
DLC Data Link Control (protocol) [IBM]
DLE Data Link Escape
DLL Dynamic Link Library
DLR DOS LAN Requester
DMA Direct Memory Access
DMAC DMA Controller
DME Distributed Management Environment
DML Data Manipulation Language
DMM Digital Multimeter
DMMS Dynamic Memory Management System
DMOS Double-diffused Metal-Oxide Semiconductor
DMP Dot Matrix Printer
DMS Data Management Software + Data Management System
DMY Day Month Year
DN Down
DNC Direct Numerical Control
DNIS Dialed Number Identification Service
DNS Domain Naming System
DO Data Out
.DOC Document + Documentation (file name extensions)
DOS Disk Operating System
DOW Day Of Week
DP Data Processing
DPA Demand Protocol Architecture [3Com]
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]
DR Data Received
D/R Direct or Reverse
DRAM Dynamic Random Access Memory
DRAW Direct Read After Write
DRDA Distributed Relational Data Architecture [IBM]
DRDW Direct Read During Write
DRI Digital Research Incorporated
DRO Data Request Output + Destructive Read-Out
.DRS WordPerfect Driver Resource (file name extension)
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
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)
DSL Dynamic Simulation Language
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
DSTN Double Supertwisted Nematic
DSW Data Status Word + Device Status Word
D2T2 Dye Diffusion Thermal Transfer (printing)
DTA Disk Transfer Area
.DTA Data (file name extension)
DTE Data Terminal Equipment + Dumb Terminal Emulator
DTL Diode-Transistor Logic
DTMF Dual Tone Multifrequency
DTP Desktop Publishing
DTR Data Terminal Ready + Data Transfer Rate
DU Disk Usage
.DV DESQview Script (file name extension)
DVI Digital Video Interactive
.DVR Device Driver (file name extension) (Also see .DRV)
DWG Drawing
.DXB Drawing Interchange Binary (file name extension)
[AutoCAD]
DXC Data Exchange Control
DXF Drawing Interchange Format
EA Extended Attribute [OS/2]
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
ECAL Enjoy Computing And Learn
ECC Error Check Code + Error Checking and Correction +
Error Correction Code
ECD Enhanced Color Display
ECL Emitter Coupled Logic
ECMA European Computer Manufacturers Association
ED Erase Display
EDA Embedded Document Architecture [Go Corporation]
EDC Error Detection and Correction
EDDC Extended Distance Data Cable
EDI Electronic Data Interchange +
Electronic Document Interchange [DEC]
EDIFACT EDI for Administration Commerce and Transport
EDLC Ethernet Data Link Control
EDLIN Editor (Line Text)
EDP Electronic Data Processing
EDPM Electronic Data Processing Machine
EDSAC * Electronic Delay Storage Automatic Computer
EDSI Enhanced Small Device Interface
EDVAC * Electronic Discrete Variable Automatic Computer
(First stored-program digital computer)
EEC Extended Error Correction
EEG Electroencephalogram
EEM Extended Memory Management
EEMS Enhanced Expanded Memory Specification
EEPROM Electrically Erasable Programmable Read-Only Memory
EFA Extended File Attribute
EFI Electromechanical Frequency Interference +
Electronics For Imaging
EFL Emitter Follower Logic
EFTS Electronic Funds Transfer System
EGA Enhanced Graphics Adapter
EIA Electronic Industries Association
EIS Executive Information System
EISA Extended Industry Standard Architecture
EL Electroluminescent (display) + Erase Line
ELF Extremely Low Frequency
ELS Entry Level System
EM Electronic Mail + Expanded Memory
EMA Enterprise Management Architecture
E-MAIL Electronic Mail
EMB Extended Memory Blocks [LIM/AST]
EMC Electromagnetic Compatibility + Extended Math Coprocessor
EMI Electromagnetic Interference
.EML Electronic Mail (file name extension)
EMM Expanded Memory Manager
EMR Electro-Magnetic Radiation
EMS Electronic Mail System + Electronic Message Service +
Expanded Memory Specification [LIM]
.ENC Encoded (file name extension)
ENDS Ends Segment
ENIAC * Electronic Numerical Integrator and Computer
(First fully electronic digital computer)
ENQ Enquiry
EOA End of Address
EOB End of Block
EOC End of Conversion
EOF End of File
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 End of String
EOT End Of Table + End of Tape (marker) + End of Text +
End of Transmission
EPL Effective Privilege Level
EPLD Electrically Programmable Logic Device
EPROM Electrically Programmable Read Only Memory +
Erasable Programmable Read Only Memory
.EPS Encapsulated PostScript (file name extension)
EPSF Encapsulated PostScript Files
ERLL Enhanced Run Length Limited
EROM Erasable Read Only Memory
ERR Error
ES Extra Segment
ESA European Space Agency
ESC Escape
ESD Electrostatic Discharge
ESDI Enhanced Small Device Interface
ESI Enhanced Serial Interface (specification) [Hayes]
ESP Enhanced Serial Port [Hayes]
ESS Electronic Switching System
ESU Electro-Static Unit
ETB End of Transmission Block
ETPL Endorsed Tempest Products List
ETS Econometric Time Series
ETX End of Text
EVGA Extended Video Graphics Array +
Extended Video Graphics Adapter
.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
FAB Computer-Chip Fabrication Plant
FAMOS Floating Gate Avalanche MOS
FAP File Access Protocol
FAT Fat Allocation Table
FAX Facsimile
.FAX Fax (file name extension)
FCB File Control Block
FCC Federal Communications Commission
FCI Flux Changes per Inch
FD Floppy Disk + Full Duplex
FDC Floppy Disk Controller
FDDI Fiber Digital Device Interface +
Fiber Distributed Data Interface
FDISK Fixed Disk
FEFO First-Ended, First-Out
FEP Front End Processor
FET Field Effect Transistor
FF Flip-Flop + Form Feed
FFT Fast Fourier Transform
FIFO First-In, First-Out
FILO First-In, Last-Out
FIP File Processor Buffering
FIR Finite Impulse Response
FLD Field
FLOPS Floating Point Operations Per Second
FMS Forms Management System
FMT Format
FNT Font
FOCUS Forum of Control Data Users
FOG First Osborne Group
.FON Phone + Phone Directory (file name extensions)
.FOR FORTRAN source code (file name extension)
FORTH (Programming Language)(See HLL)
FORTRAN Formula Translator (Programming Language)(See HLL)
FOSE Federal Office Systems Exposition
FOSSIL Fido/Opus/Seadog Standard Interface Layer
FPGA Field Programmable Gate-Array
FPLA Field Programmable Logic-Array
FPP Fixed Path Protocol + Floating Point Processor
FPS Frames Per Second
FPU Floating Point Processor Unit
FRAG Fragment + Fragmentation
FRAM Ferroelectric Random-Access Memory
FRED Frame Editor
FRPI Flux Reversals Per Inch
.FRS WordPerfect Graphics Driver (file name extension)
FSD File System Driver [OS/2]
FSK Frequency Shift Keying
F/T Full Time
FTAM File Transfer, Access and Management
FTP File Transfer Protocol
FTS Federal Telecommunication System
FUNC Function
GAAP Generally Accepted Accounting Principles
GAL Generic Array Logic
GB Gigabyte (1,000 megabytes)
GCR Group Code Recording
GDA Global Data Area
GDDM Graphics Data Display Manager
GDI Graphics Device Interface
GDT Geometric Dimensioning and Tolerancing +
Global Descriptor Table
GEM Graphics Environment Manager (DRI Program)
GEOS Graphic Environment Operating System [Geoworks]
GET Get Execute Trigger
GHZ Gigahertz
.GIF Graphic Interchange Format (file name extension)
GIGO Garbage In, Garbage Out
GIS Geographical Information System
GKS Graphical Kernal System
G/L General Ledger
GLM General Linear Models
.GLY Glossary (file name extension) [Microsoft Word]
GMT Greenwich Mean Time
GND System Ground
GOSIP Government Open Systems Interconnection Profile
GP Gas Plasma + General Purpose
GPI Graphics Programming Interface
GPIB General Purpose Interface Bus
GPSS * General Purpose Simulation Language
GRE Graphics Engine
.GRF Graph (file name extension)
.GRP Group (file name extension)
GUI Graphical User Interface
GW-BASIC Gee Whiz BASIC
.H Header (file name extension) [C]
HAL Hard Array Logic + House Programmed Array Logic
HASP Houston Automatic Spooling Priority (System)
HD Hard Disk + High Density
HDA Head Disk Assembly
HDI Head to Disk Interference
HDLC High-Level Data Link Control
HDR Header
HDSC High Density Signal Carrier [DEC]
HDTV High Definition Television
HDW Hardware
HERC Hercules
HEX Hexadecimal
HGA Hercules Graphics Adapter
HGCP Hercules Graphics Card Plus
HH Hour
HIL Human Interface Link [HP]
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
HLT Halt
HMA High Memory Area [Microsoft]
HMOS High Density Metal Oxide Semiconductor +
High Speed Metal Oxide Semiconductor
HP Hewlett-Packard (Company)
HPFS High-Performance File System
HPG Hewlett-Packard Graphics
HPGL Hewlett-Packard Graphics Language
HPIB Hewlett-Packard Interface Bus
HPPA Hewlett-Packard Precision Architecture
HPPI High Performance Parallel Interface
HRIS Human Resource Information System
HRG High Resolution Graphics
HRMS Human Resource Management System
HS High Speed
HSC High Speed Channel
HSP High Speed Printer
HST High Speed Technology [U.S. Robotics]
.HST History + Host (file name extensions)
HSV Hue Saturation Value
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)
HZ Hertz
IAL * International Algebraic Language
(ALGOL was first called IAL)
IBC Instrument Bus Computer
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
ICCP Institute for the Certification of Computer Professionals
ICE In-Circuit Emulator [Intel]
ICL Interface Clear
ICMP Internet Control Message Protocol [Novell]
.ICO Icon (file name extension)
ICP Integrated Channel Processor
ICR Intelligent Character Recognition
ID Identification + Identifier
IDA Integrated Digital Access + Intelligent Disk Array +
Intelligent Drive Array
IDE Imbedded Drive Electronics +
Integrated Development Environment [Borlund] +
Integrated Drive Electronics +
Intelligent Drive Electronics +
Interactive Design and Engineering +
Interface Design Enhancement
IDIV Integer Divide
IDMS Integrated Data Base Management System
IDP Integrated Data Processing
IDT Interrupt Descriptor Table
.IDX Index (file name extension)
IEEE Institute of Electrical and Electronics Engineers
I/F Interface
IFD Image File Directory
IFS Installable File System [OS/2]
IGA Integrated Graphics Array
IGC Integrated Graphics Controller
IIF Immediate IF
IIR Immediate Impulse Response
IMDS Image Data Stream (format) [IBM]
IMG Image
IMP Interface Message Processor
IMS Information Management System +
Intermediate Maintenance Standards
IMUL Integer Multiply
IN Input
INC Increment
.INF Information (file name extension)
.INI Initialize (file name extension)
INIT Initialize
INS Input String
INT Integer + Internal + Interrupt
INTA Interrupt Acknowledge
INTO Interrupt if Overflow occurs
I/O Input/Output
IOCS Input/Output Control System
IOCTL Input/Output Control
IOSGA Input/Output Support Gate Array
IP Instruction Pointer + Internet Protocol
IPC Instructions Per Clock + Interprocess Communication
IPF Information Presentation Facility
IPL Initial Program Load + Initial Program Loader
IPL * Information Programming Language
IPSE Integrated Project Support Environment
IPX Internetwork Packet Exchange [Novell]
IQL Interactive Query Language
IRET Interrupt Return
IRL Interactive Reader Language + Inter-Repeater Link
IRLED Infrared Light Emitting Diode
IRM Information Resource Management
IRQ Interrupt Request
IRX Information Retrieval Experiment
IS Interrupt Status
ISA Industry Standard Architecture
ISAM Indexed Sequential-Access Method
ISC Instruction Set Computer
ISD Image Section Descriptor +
Instructional Systems Design
ISDN Integrated Services Digital Network
ISI Internally Specified Index
ISL Interactive System Language
ISO International Standards Organization
ISP Interrupt Status Port
ISPF Interactive System Programming Facility
ISR Information Storage and Retrieval +
Interrupt Service Routines
ITB Information Technology Branch + Intermediate Text Block
ITC International Typeface Corporation
ITU International Telecommunication Union
ITX Intermediate Text Block
IVIS Interactive Video Information System
IVR Interactive Voice Response
IVS Interactive Videodisk System
IVT Interrupt Vector Table
IV&V Independent Verification & Validation
JA Jump Address + Jump if Above
JAE Jump if Above or Equal
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
JG Jump if Greater
JGE Jump if Greater or Equal
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
KB Keyboard + Kilobyte (1,024 bytes)
KBD Keyboard (also KEYB)
KBPS Kilo-Bytes Per Second
KDT Key Definition Table
KEYBBE Foreign language KEYBoard program - Belgium
KEYBCF Foreign language KEYBoard program - Canadian-French
KEYBDF Foreign language KEYBoard program - Denmark
KEYBFR Foreign language KEYBoard program - France
KEYBGR Foreign language KEYBoard program - Germany
KEYBLA Foreign language KEYBoard program - Latin America
KEYBNL Foreign language KEYBoard program - Netherlands
KEYBNO Foreign language KEYBoard program - Norway
KEYBPO Foreign language KEYBoard program - Portugal
KEYBSF Foreign language KEYBoard program - Swiss-French
KEYBSG Foreign language KEYBoard program - Swiss-German
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
KSR Keyboard Send Receive
KRS Knowledge Retrieval System
LALL Longest Allowed Lobe Length
LAN Local Area Network
LAPB Link Access Procedure Balanced (protocol)
LAPD Link Access Procedure Direct (protocol)
LAPM Link Access Procedure for Modems
LAR Load Access Rights
LAWN Local Area Wireless Network
LBL Label
LBR Librarian
.LBR Library (file name extension)
LBT Listen Before Talk
LCC Leadless Chip Carrier
LCD Liquid Crystal Display
LCU Last Cluster Used
LDA Logical Device Address
LDC Lotus Development Corporation
LDT Local Descriptor Table
LE Less or Equal
LEA Load Effective Address
LED Light Emitting Diode
LEM Language Extension Module
.LET Letter (file name extension)
LEX Lexicon
LF Line Feed
LFI Last File Indicator
LFU Least Frequently Used
LGDT Load Global Descriptor Table
.LIB Library (file name extension)
LICS Lotus International Character Set [LDC]
LIDT Load Interrupt Descriptor Table
LIFO Last In First Out
LIM Lotus/Intel/Microsoft
LIMS Library Information Management System
LIPS Logical Interferences Per Second
LISP List Processing (Language)(See HLL)
LLC Logical Link Control
LLDT Load Local Descriptor Table
LMI Local Management Interface
LMSW Load Machine Status Word
LM/X LAN Manager for Unix
LN Logarithm (Natural)
LOC Loop On-Line Control
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
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
LPT Line Printer
LPT1 First Parallel Printer Port
LPT2 Second Parallel Printer Port
LPT3 Third Parallel Printer Port
LQ Letter Quality
LRC Local Register Cache +
Longitudinal Redundancy Check
LRI Least Recently Loaded
.LRS Language Resource (file name extension) [WordPerfect]
LRU Least Recently Used
LSA Line Sharing Adapter
LSB Least Significant Bit
LSC Least Significant Character
LSD Least Significant Digit
LSI Large Scale Integration
LSL Load Segment Limit
LST List
.LST List (file name extension)
LTR Letter + Load Task Register
LU Logical Unit (Also LUN)
LUT Lookup Table
LZW Lempel-Ziv-Walsh (algorithm)
MAC Medium Access Control
.MAC MacPaint (file name extension) +
Macro (file name extension)
.MAI Mail (file name extension)
MAN Manual + Metropolitan Area Network
MAP Maintenance Analysis Procedures +
Manufacturing Automation Protocol +
Memory Allocation Map
.MAP Linker Map (file name extension)
MAPICS Manufacturing, Accounting and Production
Information Control System [IBM]
MASM Macro Assembler [Microsoft]
MAU Media Access Unit + Multistation Access Unit
MAX Maximum
MB Megabyte (1,000 kilobytes)
MBASIC Microsoft BASIC
MBPS Megabytes Per Second
MCA Micro Channel Architecture [IBM]
MCB Memory Control Block
MCGA Multicolor Graphics Array
MCU Multi-Chip Unit [DEC]
MD Make Directory + Monochrome Display
MDA Monochrome Display Adapter
MDI Multiple Document Interface
MDIC Manchester Decoder and Interface Chip [AT&T]
MDR Minimum Design Requirement
MDY Month Day Year
.ME Opening Information (file name extension) (As in READ.ME)
MEB Memory Expansion Board
MEG Megabyte
.MEN Menu (file name extension)
MFLOPS Million Floating Point Operations Per Second
MFM Modified Frequency Modulation
MFP Multifunction Peripheral
MFS Magnetic Tape Field Search
MFT Multiprogramming with a Fixed number of Tasks
MGA Monochrome Graphics Adapter
MGR Manager
MHS Message Handling Service + Message Handling System
MHZ Megahertz
MICS Macro Interpretive Commands
MIDI Musical Instrument Digital Interface
MII Microsoft/IBM/Intel
MIL Machine Interface Layer [Go Corporation]
MIMD Multiple Instruction Multiple Data Stream (processor)
MIN Minimum
MIPS Million Instructions Per Second
MIS Management Information System
MISC Miscellaneous
MIX Member Information Exchange
MKDIR Make Directory
ML Machine Language
MM Minutes + Month
MMC Matched Memory Cycle + Microcomputer Marketing Council
MMU Memory Management Unit
MNOS Metal Nitride Oxide Semiconductor
MNP Microcom Networking Protocol
.MNU Menu (fine name extension)
MO Magneto-Optical (disk drive)
MODEM Modulator Demodulator
MOHLL Machine Oriented High Level Language
MOV Metal Oxide Varistor + Move
MOVS Move String
MOD Modem + Modulus
MOS Metal Oxide Semiconductor
MOSFET Metal Oxide Semiconductor Field Effect Transistor
MOV Move
MOVS Move String
MPC Multimedia Personal Computer
MPCS Mission Planning and Control Station (Software)
MPEG Moving Picture Experts Group
MPP Massively Parallel Processing +
Message Processing Program +
Microcom Network Protocol [Microcom]
MPR Multipart Repeater
MPT Mean Repair Time
MPU Microprocessor Unit
MR Modem Ready
MRI Magnetic Resonance Imaging
MRO Multi-Region Operation
MRP Materials Requirement Planning
MRPL Main Ring Path Length
MS Memory System + Microsecond +
Microsoft Corporation + Millisecond
MSB Most Significant Bit
MSD Mass Storage Device + Most Significant Digit
MS-DOS Microsoft-Disk Operating System
MSDR Multiplexed Streaming Data Request
MSG Message
.MSG Program Message (file name extension)
MSI Medium Scale Integration
MSL Map Specification Library
.MSP Microsoft Paint (file name extension) [Microsoft]
MSW Machine Status Word
MTA Message Transfer Agent + Multiple Terminal Access
MTBB Mean Time Between Breakdowns
MTBF Mean Time Before Failure + Mean Time Between Failures
MTBJ Mean Time Between Jams
MTS Message Transfer Service + Multichannel Television Sound
MTTF Mean Time To Failure
MTTR Mean Time To Repair
MUL Multiply
MUMPS Massachusetts General Hospital Utility
Multi-Programming System (Programming Language)
MUX Multiplexer
MVGA Monochrome Video Graphics Array
MVS Multiple Virtual Storage
MVT Multiprogramming with a Variable number of Tasks
NACD National Association of Computer Dealers
NACS National Advisory Committee on Semiconductors
NAE Not Above or Equal
NAK Negative Acknowledgment
NAPLPS North American Presentation Level Protocol
Syntax (graphics)
NAS Network Application Support [DEC]
NASA National Aeronautics and Space Administration
NASI NetWare Asynchronous Services Interface [Novell]
NBE Not Below or Equal
NBI Nothing But Initials
NBS National Bureau of Standards
NC No Carry + Numerical Control
NCA Network Communications Adapter
NCC Network Control Center
NCGA National Computer Graphics Association
NCIC National Crime Information Center
NCMT * Numerical Control for Machine Tools
NCP Network Control Processor + Network Control Program +
Not Copy Protected
NCR National Cash Register (Company)
NCSI Network Communications Services Interface [Novell]
NDEF Not to be Defined
NDIS Network Driver Interface Specification
NDP Numeric Data Processor
NDRO Non-Destructive Read Out
.NDX Index (file name extension)
NEC Nippon Electric Company
NEG Negative + Negate
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]
NFF No Fault Found
NFS Network File System
NG No Good
NGE Not Greater or Equal
NHC National Hurricane Center
NIC Network Interface Card + Numeric Intensive Computing
NICAD Nickel Cadmium
NID New Interactive Display [NEC] + Next ID
NIPS Network I/Os Per Second
NIST National Institute for Standards and Technology
NJE Network Job Entry (protocol) [IBM]
NL New Line
NLE Not Less or Equal
NLM NetWare Loadable Module
NLQ Near Letter Quality
NMI Non-Maskable Interrupt
NMOS Negative Channel Metal-Oxide Semiconductor
NOP No Operation
NOR Not Or
NOS Network Operating System
NPI Network Printer Interface
NRZ Not Return to Zero
NRZI Non Return to Zero Inverted
NS Nanosecond + Network Supervisor + Non Stop
NSA POLY National Security Agency Polygraph
NSF National Science Foundation
NT New Technology [Microsoft]
NTF No Trouble Found
NTSC National Television Standards Committee
NUI Network User Identification +
Network User Interface +
Notebook User Interface [Go Corporation]
NUL Dummy Device + No Device
NV No Overflow
NVM Non-Volatile Memory
NVRAM Non-Volatile Random Access Memory
OAG Official Airline Guide
OAI Open Applications Interface
OBJ Object
OCL Operation Control Language + Operator Control Language
OCR Optical Character Recognition
ODA Office Document Architecture
ODBMS Object-Oriented Database Management System
ODI Open Datalink Interface [Novell]
OEM Original Equipment Manufacturer
OF Overflow Flag
OFMT Output Format for Numbers
OFS Output Field Separator
OH Off Hook
OIS Office Information Systems
.OLD Old version (file name extension)
OLE Object Linking and Embedding [Microsoft]
OLMC Output Logic Macrocell
OLTP On-Line Transaction Processing
OMF Object Module Format [Microsoft]
OMG Object Management Group
OMNS Open Network Management System
OMR Optical Mark Recognition
OOL Object-Oriented Language
OOPL Object-Oriented Programming Language
OOPS Object Oriented Programming and Systems
OOS Object-Oriented Systems +
Off-line Operating Simulator
OP Operation + Optical + Output
OPC Optical Photoconductor
OP CODE Operational Code
OPD Operand
OPM Operations Per Minute
OPS Operations
.OPT Options (file name extension)
OPUS Octal Program Updating System
ORACLE On-Line Inquiry and Report Generator (UNIX DB program)
ORS Output Record Separator
OS Operating System
OS/2 Operating System Two [IBM]
OSA Open System Architecture
OS/E Operating System/Environment
OSF Open Software Foundation
OSI Open Systems Interconnection
OTF Open Token Foundation
.OUT Outlines (fine name extension)
OUTS Output String
OV Overflow
.OVL Program Overlay (file name extension)
.OVR Program Overlay (file name extension)
PABX Private Automatic Branch Exchange
PAD Packet Assembler/Disassembler
PADS Pen Application Development System [Slate Corporation]
PAL Paradox Applications Language [Borlund] +
Phase Alternate Line + Programmed Array Logic +
Programming Assembly Language
PALS Principles of the Alphabet Literacy System
PAR 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 (file name extension)
PBE Prompt By Example
PBX Private Branch Exchange
PC Personal Computer + Printed Circuit + Program Counter
PCB Printed Circuit Board + Program Control Block
PC-DOS Personal Computer - Disk Operating System
(IBM version of MSDOS)
PC-I/O Program Controlled I/O
PCL Printer Command Language [HP] + Process Control Language
PCM Pulse Code Modulation
PCMCIA Personal Computer Memory Card International Association
PCS Patchable Control Store + Planning Control Sheet +
Print Contrast Signal + Process Control Systems +
Program Counter Store + Project Control System
.PCT Picture (file name extension)
.PCX Picture Image (file name extension)
PD Public Domain
PDF Program Development Facility
.PDF Printer Description (file name extension)[Borlund,Lotus]
PDL Page Description Language + Program Description Language
+ Program Design Language
PDN Public Data Network
PDP Progammable Data Processor +
(DEC Computer System Designation, i.e. PDP-8, PDP-11)
PDS Partitioned Data Set
PDSS Post Development and Software Support
.PDX Paradox files (file name extension) [Borlund]
PE Parity Even + Protect Enable
PEA Pocket Ethernet Adapter
PEL Picture Element [IBM]
PEP Packetized Ensemble Protocol [Telebit]
PERT Program Evaluation and Review Technique
PES Positioning Error Signal
PFR Power-Fail Restart
PGA Pin Grid Array + Professional Graphics Adapter [IBM]
PGDN Page Down
.PGL Graphics (file name extension) [Hewlett-Packard]
PGM Program
.PGP ProGram Parameter (file name extension) [AutoCAD]
PGUP Page Up
PHIGS Programmers' Hierarchial Interactive Graphics
Standards
.PHO Phone List (file name extension)
PI Program Interruption
PIA Peripheral Interface Adapter
PIC Priority Interrupt Controller +
Program Interrupt Controller
.PIC Graph (file name extension) [Lotus 1-2-3] [LDC]
PID Process Identification Number
PIF Program Information File
PILOT Programmed Inquiry Learning Or Teaching
PIM Personal Information Manager
PIN Personal Identification Number
PIO Parallel Input/Output + Processor Input/Output +
Programmed Input/Output
PIP Picture In Picture + 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
PLL Phase Locked Loop
.PLL Prelinked Library (file name extension) [Clipper]
PL/M Programming Language for Micros
PLV Production Level Video
PL/1 * Programming Language One
PM Presentation Manager + Preventative Maintenance
PMMU Paged Memory Management Unit
PMOS Positive Channel Metal Oxide Semiconductor
PO Parity Odd
POL Problem Oriented Language
POP Pop from Stack
POPA Pop All Registers
POPF Pop Flags
POS Point Of Sale + Positive + Programmable Object Select
POSIX Portable Oprating System Environment Standard [IEEE]
POST Power-On Self Test
POSTNET Postal Numeric Encoding Technique
PPDS Personal Printer Data Stream [IBM]
PPM Pages Per Minute
.PRD Printer Driver (file name extension) [Word]
.PRF Preferences (file name extension) [Grammatik IV]
PROC Procedure
PROG Program + Programmer
PROLOG Programming In Logic (Programming Language)(See HLL)
PROM Programmable Read Only Memory
PRN Printer
PPP Point-to-Point Protocol
.PRS Printer (file name extension) [WordPerfect]
PRTSC Print Screen
.PS PostScript (file name extension)
PS/2 Programming System 2 [IBM]
PSC Product Service Center
PSP Program Segment Prefix
P-SRAM Pseudo-Static Random Access Memory
PSW Program Status Word
PT Page Table
P/T Part Time
PTD Parallel Transfer Disk Drive
PUB Publication + Publish
.PUB Publication (file name extension) [Ventura]
PUSHA Push All Registers
PUSHF Push Flags
PVM Pass-through Virtual Machine (protocol) [IBM]
PWB Printed Wire Board
PWR Power
.PX Primary Index (file name extension) [Paradox]
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]
QFA Quick File Access
QIC Quality Information Using Cycle Time [Hewlett-Packard] +
Quarter-Inch Cartridge
.QIF Quicken Interchange Format (file name extension)
[Quicken]
.QMT Memorized List (file name extension) [Quicken]
.QNX Indexes to Data (file name extension) [Quicken]
QPSK Quadrature Phase Shift Keying
RA Return Authorization
RACF Resource Access Control Facility
RAG Row Address Generator
RAID Redundant Arrays of Inexpensive Disks
RALU Register Arithmetic Logic Unit
RAM Random Access Memory
RAMDAC Random Access Memory Digital-to-Analog
Converter [Sierra]
RAND Random
RAS Random Access Storage +
Reliability, Availability and Serviceability +
Row Address Select
RBBS Remote Bulletin Board System
RCL Rotate Carry Left
RCP Restore Cursor Position
RCR Rotate Carry Right
RCS Records Communications Switching System
RD Receive Data
R&D Research and Development
RDB Receive Data Buffer
RDCLK Received Timing Clock
RDSR Receiver Data Service Request
.REF Reference (file name extension)
REG Register
REGAL Rigid Epoxy Glass Acrylic Laminate
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 Reset + Resolution
.RES Resource (file name extension)
RET Resolution Enhancement Technology [HP] +
Return
REX Relocatable Executable
RD Received Data + Remove Directory
RDB Relational Data Base
RDBMS Relational Data Base Management System
RELSECT Relative Sector
RF Radio Frequency
RFP Request for Proposal
RFS Remote File System
RFT Revisable Form Text + Rich Text Format
RFU Reserved For Future Use
RGB Red-Green-Blue (color model)
RIFF Resource Interschange File Format [Microsoft]
RIME RelayNet International Message Exchange
RIP Raster Image Processor +
Routing Information Protocol [Novell]
RISC Reduced Instruction Set Computer
RLE Run Length Encoded
RLL Run Length Limited
RLSD Received Line Signal Detected
RLSI * Ridiculously Large-Scale Integration
RM Reset Mode
RMA Return Material Authorization +
Return to Manufacturer Authorization
RMDIR Remove Directory
RMS Record Management Services + Root Mean Square
RND Random
R-O Read Only
ROL Rotate Left
ROM Read Only Memory
ROR Rotate Right
RPC Real Procedure Call + Remote Procedure Call
RPG Report Program Generator (Programming Language)
RPL Requested Privilege Level
RPPROM Reprogrammable PROM
RPT Repeat
RPQ Request for Price Quotation
RS Radio Shack + Request to Send +
Recommended Standard (as in RS-232) [EIA]
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
RTAM Remote Terminal Access Method
RTC Real-Time Clock
RTL Register Transfer Language +
Resistor Transistor Logic + Run Time Library
RTM Response Time Monitor
RTOS Real-Time Operating System
RTS Request To Send
RTTY Radio Teletypewriter (Communications)
RTV Real Time Video
R/W Read/Write
RWM Read-Write Memory
RX Receiver
RXD Received Data
SAA Systems Application Architecture [IBM]
SAINT * Symbolic Automatic Integrator
SAL Shift Arithmetic Left
SAM Serial Access Memory +
Sequential Access Method
SAP Second Audio Program + Service Access Point [DEC]
SAP * Symbolic Assembly Program
SAR Shift Arithmetic Right +
Successive Approximation Register
SAS Sales Accounting System + Single Audio System
.SAV Saved (file name extension)
SBB Subtract With Borrow
SBC Single-Board Computer
SCAS Scan String
SCB Subsystem Control Block [IBM]
SCC Serial Communications Controllers +
Synchronous Channel Check [IBM]
SCD Standard Color Display
SCF System Control Facility
SCM Software Configuration Management
SCO Santa Cruz Operation (Software Company)
SCP Save Cursor Position + Subsystem Control Port +
System Control Program
SCR Silicon Controlled Rectifier
.SCR Script (file name extension)
SCRN Screen (video display)
SCSI Small Computer Systems Interface
SD Send Data
SDA Software Disk Array + Source Data Automation +
System Display Architecture [Digital]
.SDF Standard Data Format (file name extension)
SDLC Synchronous Data Link Control
SDK Software Developer's Kit [Microsoft]
SDN Software Defined Network [AT&T]
SDNS Secure Data Network Service
SDR Streaming Data Request
SDS Sysops Distribution System
SD_STB Streaming Data Strobe [IBM]
SEA Standard Extended Attribute [OS/2]
SEAC * Name of first computer to use transistors, built
by Standard Eastern Automating Computing
SEC Single Error Correction
SECAM Sequential Color And Memory
SED Stream Editor
SEG Segment
SEL Select
SEM Scanning Electron Microscope +
Standard Electronic Module
SER Serial
.SET Driver Set (file name extension) [Lotus 1-2-3] [LDC] +
Image Settings (file name extension) [Paradox]
SEU Smallest Executable Unit
SF Sign Flag
SFQL Structured Full-text Query Language
SFT System Fault Tolerance
SFX Sound Effect(s)
SGEN Signal Generator + System Generator
SGDT Store Global Descriptor Table
SGML Standard Generalized Markup Language
SGR Set Graphics Rendition
S/H Sample and Hold
SHL Shift Logical Left
SHR Shift Logical Right
SI Source Index + System Information
SID Station Identification [AT&T]
SIDT Store Interrupt Descriptor Table
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
SIMULA Simulation (language)
SIP Single In-line Package
SIPO Serial In, Parallel Out
SIPP Single In-line Pin Package
SIT Special Information Tones
SISO Serial In, Serial Out
SLDT Store Local Descriptor Table
SLMR Silly Little Modem Reader
SLOSH Sea, Lake and Overland Surge from Hurricane (program)
SLSI Super Large-Scale Integration
SM Set Mode
SMB Server Message Block (protocol) [MII]
SMD Surface Mounted Device
SMDS Switched Multimegabit Data Service
SMI System Management Interrupts [Intel]
SMIF Standard Mechanical Interface
SMK Software Migration Kit [Microsoft]
SMP Symbolic Manipulation Program
SMPS Switching Mode Power Supply
SMSW Store Machine Status Word
SMT Surface-Mount Technology
SMTP Simple Mail Transfer Protocol
SMU System Management Utility
SN Serial Number
S/N Signal-to-Noise
SNA Systems Network Architecture [IBM]
SND Sound
SNMP Simple Network Management Protocol
SNOBOL String Oriented Symbolic Language (Progamming Language)
SNP Serial Number/Password [Omen Technology]
SNR Signal-to-Noise Ratio
SOE Standard Operating Environment
SOH Start of Heading
SOL Simulation Oriented Language
SOM Start of Message
SOP Standard Operating Procedures
SOS Silicon On Sapphire + Standards and Open Systems
SOTA State Of The Art
SP Stack Pointer + System Product
SPA Software Publishers Association
SPARC Scalable Processor Architecture
SPC Small Peripheral Controller + Statistical Process Control
SPCL Spectrum Cellular Corporation
SPF System Programming Facility
SPIKE Science Planning Intelligent Knowledge-Based
Environment [STScI]
SPL Spooler
.SPL Spell Checker (file name extension)
SPOOLING Simultaneous Peripheral Operations On Line
SPS Standby Power System
SPSS Statistical Package for the Social Sciences
SPT Sectors Per Track
SPX Sequenced Packet Exchange [Novell]
SQ Squeezed (files)
SQL Structured Query Language
SQRT Square Root
SR Shift Register
SRAM Shadow Random Access Memory +
Static Random Access Memory
SRO Sharable and Read Only
SRQ Service Request
SRR Serially Reusable Resource
SS Stack Segment + Single Sided + Seconds
SSEC * Selective Sequence Electronic Calculator [IBM]
SSGA System Suppport Gate Array
SSI Small Scale Integration
SST Spread-Spectrum 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]
STDOUT Standard Output
STDPRN Standard Printer
.STF Structured File (file name extension) [Lotus Agenda]
STI Set Interrupt Flag
STN Supertwist Nematic
STOS Store String
STP Signal Transfer Point
STR Store Task Register + Synchronous Transmitter Receiver
STRESS Structural Engineering System Solver (Programming
Language)
STRUDL Structural Design Language (Programming Language)
STScI Space Telescope Science Institute
STX Start of Text
.STY Style (file name extension) [Ventura, Word, WordPerfect]
SUB Subroutine + Substitute + Subtract
.SUP Supplemental Dictionary (file name extension)
[WordPerfect]
S-VHS Super VHS
S/W Software
SYLK Symbolic Link
.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
TAD Telephone Answering Device
TAPCIS The Access Program for the CompuServe
Information Service
TASM Turbo Assembler [Borland]
TAXI Transparent Asynchronous Tranceiver Interface
TB Terabyte (1,000 gigabytes)
T/B Top and Bottom
TBBS The Bread Board System (BBS)
.TBK Toolbook (file name extension)
TCM Trellis-Coded Modulation
TCP/IP Transmission Control Protocol/Internet Protocol
TD Transmit Data
TDE Terminal Display Editor
TDM Time Division Multiplexing
TDMS Terminal Display Management System
TDSR Transmitter Data Service Request
TDR Time Domain Reflectometry
TEC Tokyo Electronics Corporation
TED Tiny Editor
TEML Turbo Editor Macro Language [Borlund]
TERMPWR Terminator Power
TFEL Thin-Film Electroluminescent
TFT Thin-Film Transistor
.THD Thread (file name extension)
THOR Tandy High-Performance Optical Recording
.THS Thesaurus (file name extension)
TID Target ID
.TIF Tagged Image File (file name extension)
TIFF Tagged Image File Format
TIGA Texas Instruments Graphics Architecture
TIGER Topologically Integrated Geographic Encoding
and Referencing
TIP Terminal Interface Processor
TLB Translation Lookaside Buffer
TLU Table Lookup
.TLX Telex (file name extension)
TM Trademark
TMP Temporary
TN Twisted Nematic
TOP Technical and Office Protocol
TPC Transaction Processing Performance Council
TPI Tracks Per Inch
TPL Table Producing Language
TPORT Twisted Pair Port Transceiver [AT&T]
TPS Transaction Processing System
TR Terminal Ready
TRADIC * Transistorized Airborne Digital Computer
(Name of first computer to be entirely
transistorized)
TRON The Real-Time Operating System Nucleus
TS Top Secret
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 Printer Test (file name extension) [WordPerfect]
TSTN Triple Supertwisted Nematic
TTL Transistor-Transistor Logic
TTS Transaction Tracking System
TTY Teletype
TUI Text-Based User Interface [WordPerfect]
.TUT Tutorial (file name extension)
TVI Television Interference
TWX Teletypewriter Exchange Service
TXD Transmitted Data
TXT Text
TXT2STF Text To Structured File [Lotus Agenda]
UA User Agent + User Area
UAE Unrecoverable Application Error
UART Universal Asynchronous Receiver/Transmitter
UCL Universal Communications Language
UDP User Datagram Protocol [Novell]
UG User Group
UI Unix International
UID User Identifier
UL Upload
ULA Uncommitted Logic Array
ULSI Ultra Large Scale Integration
UMB Upper Memory Block [LIM/AST]
UNCOL Universal Computed Oriented Language
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
UPC Universal Product Code
UPL User Program Language
UPM User Profile Management [IBM]
UPS Uninterruptible Power Supply +
Uninterruptible Power System
USART Universal Synchronous-Asynchronous Reciever/Transmitter
USERID User Identification
USQ Unsqueezed (files)
USRT Universal Synchronous Receiver/Transmitter
USSA User Supported Software Association (United Kingdom)
UT User Terminal
UTC Coordinated Universal Time
UTI Universal Text Interchange
UTP Unshielded Twisted-Pair
UUCP Unix-To-Unix Copy
UUI User-To-User Information [AT&T]
UV Ultraviolet
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 Processes
VAR Value Added Reseller + Value Added Retailer + Variable
VAX Virtual Address Extension (Computer System
Designation) [DEC]
VB Variable Block
VCPI Virtual Control Program Interface
VCR Video Cassette Recorder
VDISK Virtual Disk
VDS Virtual DMA Services
VDT Video Display Terminal
VDU Video Display Unit + Visual Display Unit
VEGA Video-7 Enhanced Graphics Adapter [Video-7, Inc.]
VER Verify
VERR Verify Read Access
VERW Verify Write Access
VESA Video Electronics Standards Association
VFD Vacuum Fluorescent Display
VGA Video Graphics Array
VGC Video Graphics Controller
VHS Very High Speed + Virtual Host Storage
VHSIC Very High Speed Integrated Circuit
VIO Video Input/Output + Virtual Input/Output
VINES Virtual Network Operating System [Banyan]
VIP Variable Information Processing
VIPER Verifiable Integrated Processor for
Enhanced Reliability
VIS Voice Information System
VLF Very Low Frequency
VLIW Very Long Instruction Word (machine)
VLSI Very Large Scale Integration
VLSIPS Very Large Scale Immobilized Polymer Synthesis
VLT Variable List Table
VM Virtual Machine
VMM Virtual Memory Manager [Clipper]
VMOS Vertical MOS
VMS Virtual Memory System + Voice Message System
VMT Virtual Memory Technique
VOL Volume
VOM Volt Ohm Meter
VOS Verbal Operating System
VR Voltage Regulator
VRAM Video Random Access Memory
VROOMM Virtual Real-time Object Oriented
Memory Manager [Borlund]
.VRS WordPerfect Graphics Driver (file name extension)
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
VSLI Very Large Scale Integration
VSM Virtual Storage Management
VSOS Virtual Storage Operating System
VSYNC Vertical Sync
VTAM Virtual Telecommunications Access Method [IBM]
VUI Video User Interface
VMS Virtual Memory System + Voice Message System
W/ With
WAITS Wide-Area Informtion Transfer System
WAN Wide Area Network
WATS Wide Area Telecommunications Service
WC Word Count
WELL Whole Earth Lectronic Link (BBS)
WGS Work Group System
.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]
.WMF Windows Metafile (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
WP WordPerfect + Word Processing + Write Protected
.WPG Graphics (file name extension) [WordPerfect]
WPHD Write-Protect Hardd Disk
.WPK Keyboard (file name extension) [WordPerfect]
WPM Words Per Minute
.WPM Macro (file name extension) [WordPerfect]
.WQ1 Spreadsheet (file name extension) [BORPQU]
.WQ! Compressed Spreadsheet (file name extension) [BORPQU]
WS WordStar + Workstation
WT Write Through
WYSBYGI What You See Before You Get It
WYSIWYG What You See Is What You Get
XA Extended Architecture + Extended Attribute
XCHG Exchange
XCMD External Command
XDR External Data Representation
XFCN External Function
XGA Extended Graphics Array [IBM]
XID Exchange Identifier
XIOS Extended Input/Output System
XLAT Translate
XMIT Transmit
XMM Extended Memory Manager [LIM/AST]
XMS Extended Memory Specification [LIM/AST]
XNS Xerox Network System (protocol)
XOR Exclusive OR (Also EOR)
XSMD Extended Storage Module Drive (interface)
XTAL Crystal
XTCLK External Transmit Clock
YAM Yet Another Modem [Omen Technology]
ZBR Zone Bit Recording
Z-CAV Zoned Constant Angular Velocity
ZIP Zone Improvement Plan (ZIPcode)
.ZIP Compressed File (file name extension) [PKWare]
.ZOO Compressed File (file name extension) [Dhesi]
ZSL Zero Slot LAN
.$$ Temporary File (file name extension)
UUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUUU
UU UU
UU BABEL: A LISTING OF UU
UU COMPUTER ORIENTED ABBREVIATIONS AND ACRONYMS UU
UU UU
UUUUUUUUUUUUUUUUUUUU Version 92A UUUUUUUUUUUUUUUUUUUUU
Copyright (c) 1989-1992 Irving Kind All Rights Reserved
c/o K & D, One Church Lane, Baltimore, MD 21208
Jan 1992 version = BABEL92A Jan 1993 version = BABEL93A
May 1992 version = BABEL92B May 1993 version = BABEL93B
Sep 1992 version = BABEL92C Sep 1993 version = BABEL93C
NOTE 1: (To insure that you will receive the latest version)
On receipt of your disk and disk mailer stamped with return
postage, the following procedure is followed:
If received during Jan, Feb or Mar; the Jan version will
be sent to you promptly. If received during Apr, your
disk will be held until the May version is issued.
If received during May, Jun or Jul; the May version will
be sent to you promptly. If received during Aug, your
disk will be held until the Sep version is issued.
If received during Sep, Oct or Nov; the Sep version will
be sent to you promptly. If received during Dec, your
disk will be held until the Jan version is issued.
NOTE 2: Any of these disk sizes may be sent for updates:
5-1/4" DD or HD 3-1/2" DD or HD