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The following information has be purloined from sources all over the Net and to try to identify them all would be one royal PITA, so those of you who have contributed (knowingly or otherwise), I extend my very Hardiest THANKS.

The preceeding information has been purloined from all over the NET by Lucien T. Elliott and was last updated on 10 January 1997

Acc	Definition	Acc	Definition
A/D	Analog to Digital	A/P	Accounts Payable
A/R	Accounts Receivable	AA	Auto Answer
AASP	ASCII Asynchronous Support Package	AAT	Average Access Time
ABEND	Abnormal End	ABI	Application Binary Interface
ABIOS	Advanced BIOS	ABS	Absolute
ACC	Accumulator	ACD	Automated Call Distribution
ACE	Advanced Computing Environment [SCO]	ACF	Access Control Field Advanced Communications Function
ACIS	American Committee for Interoperable Systems	ACK	Acknowledgment
ACM	Association for Computing Machinery	ACMS	Application Control Management System
ACP	Ancillary Control Program Auxillary Control Process	ACS	Access Access Control Set Access Control System Asynchronous Communication Server
ACU	Automatic Calling Unit	ADA	Automatic Data Acquisitions (Programming Language named after Agusta Ada Lovelace)
ADC	Adaptive Data Compression (protocol) [Hayes] Add with Carry Analog to Digital Convertor	ADCCP	Advanced Data Communication Control Procedures
ADF	Automatic Document Feed	ADMD	Administrative Management Domain [X.400]
ADP	Automatic Data Processing	ADR	Address
ADS	Application Development System Automatic Distribution System	ADT	Application Data Types
ADU	Automatic Dialing Unit	AFII	Association for Font Information Interchange
AI	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]
AKA	Also Known As All Kidding Aside	ALGOL	Algorithmic Language (see IAL)
ALR	Advanced Logic Research Inc.	ALT	Alternate
ALU	Arithmetic Logic Unit	AMD	Advanced Micro Devices Inc.
ANI	Automatic Number Identification	ANSI	American National Standards Institute
AO	Analog Output	AOE	Application Operating Environment [AT&T]
AP	Adjunct Processor Application Processor	APAR	Authorized Program Analysis Report {A Bug} [IBM]
APCUG	Association of PC User Groups	API	Application programming interface
APL	A Programming Language	APM	Advanced Power Management [IBM OS2]
APPC	Advanced Program-to-Program Communication [IBM]	APPI	Advanced Peer-to-Peer Internetworking
APPN	Advanced Peer-to-Peer Networking [IBM]	APS	Asynchronous Protocol Specification
APSE	ADA Programming Support Environment	APT	Automatic Program Tools
ARCA	Advanced RISC Computing Architecture	ARMA	Association of Records Managers and Administrators
ARPA	Advanced Research Projects Agency	ARTIC	A Real-Time Interface Copressor [IBM]
ARU	Audio Response Unit	ASAP	As Soon As Possible
ASCII	American Standard Code for Information Interchange	ASP	Association of Shareware Professionals
ASPI	Advanced SCSI Programming Interface [Adaptec]	ASPS	Advanced Signal Processing System
ASR	Automatic Send-Receive Automatic Speech Recognition	ASYNC	Asynchronous
AT	Advanced Technology	AT&T	American Telephone and Telegraph
ATA	AT Bus Attachment	ATE	Automated Test Equipment
ATG	Advanced Technology Group	ATM	Automated Teller Machine
ATR	Automatic Terminal Recognition	ATS	Administrative Terminal System
ATTN	Attention	ATTRIB	Attribute
AUDIT	Automated Data Input Terminal	AUP	Appropriate Use Policies [Internet]
AUTO	Automatic	AUX	Auxiliary
AVG	Average	AVI	Audio Visual Interleaved [Microsoft]
AX	Architecture Extended

Acc	Definition	Acc	Definition
B/F	Background/Foreground
BAK	Binary Adaption Kit [Microsoft]	BAL	Basic Assembly Language [IBM mainframe symbolic machine language]
BARTS	Bell Atlantic Regional Timesharing	BASIC	Beginner's All-purpose Symbolic Instruction Code [Dartsmouth circ 1964]
BASM	Built-In Assembler	BBS	Bulletin Board System
BCD	Binary Coded Decimal	BCL	Batch Command Language
BCPL	Basic Computer Programming Language	BDOS	Basic Disk Operating System
BI	Binary Input	BIOS	Basic Input/Output System
BIS	Business Information System	BIT	Binary digit
BITNET	Because It's Time Network	BIX	Byte Information Exchange (BBS)
BKSP	Backspace	BL	Backlit
BLAST	Blocked Asynchronous Transmission [Communications Research Group]	BLK	Block
BLOB	Binary Large Object	BO	Binary Output
BOF	Beginning Of File	BOM	Beginning Of Message
BOOTP	Bootstrap Protocol [Internet]	BOS	Basic Operating System
BOT	Beginning Of Table/Tape/Task	BPI	Bits Per Inch
BPS	Bits Per Second Bytes Per Second	BRI	Basic Rate Interface
BSAM	Basic Sequential Access Method	BSC	Binary Synchronous Communication
BSCS	Bachelor of Science (Degree) in Computer Science	BSD	Berkely Standard Distribution
BSI	British Standards Institute	BSYNC	Binary Synchronous Communications
BTAM	Basic Telecommunications Access Method [IBM]	BTW	By The Way
BiSYNC	Binary Synchronous Communications (protocol)

Acc	Definition	Acc	Definition
C	C Programming Language
C&T	Chips and Technologies	C/D	Control Data
C/S	Client Server	CAD	Computer Aided Drawing / Design
CADD	Computer Aided Design and Drafting	CAE	Computer Aided Engineering
CAI	Computer Aided Instruction	CAL	Computer Aided Learning
CAM	Computer Aided Manufacturing	CAM	Computer Aided Manufacturing
CAP	Computer Aided Publishing	CAPD	Computing To Assist Persons With Disabilities [Johns Hopkins University]
CASE	Computer Aided System Engineering	CASE	Computer Aided Software Engineering
CASS	Computer Assisted Search Service	CAT	Computer Aided Testing
CATS	Computer Assisted Training System	CBL	Computer Based Learning
CBT	Computer Based Training	CCITT	Consultative Committee for International Telegraph and Telephone
CCP	Console Command Processor	CCS	Common Communications Support
CD	Carrier Detect Change Directory Compact Disk	CDC	Control Data Corporation
CDL	Computer Design Language	CDOS	Concurrent Disk Operating System
CEI	Conducted Electromagnetic Interference	CGA	Color Graphics Adapter
CGI	Computer Generated Images Computer Graphics Interface	CHR	Character
CI$	Compuserve Information $ervice	CICS/VS	Customer Information Control System/Virtual Storage [IBM]
CIM	CompuServe Information Manager Computer Integrated Manufacturing	CIOCS	Communication Input/Output Control System
CIS	Compuserve Information Service	CIS	CompuServe Information Service Computer Information Systems
CISC	Complex Instruction Set Computing	CLI	Command Line Interface
CLIST	Command List	CM	Centimeter
CMA	Concert Multi-thread Architecture	CMC	Communication Mangement Configuration
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	CMS	Conversation Monitor System [DEC VMS][IBM VM/CMS]
CNC	Computerized Numerical Control	CNSS	Core Nodal Switching Subsystem [Internet]
CNV	Conventional (pertaining to Memory)	CNVT	Convert
CO	Central Office Command Output Convert Out	COBOL	COmmon Business-Oriented Language
CODASYL	Conference on Data System Languages (Group that designed COBOL)	COEM	Commercial Original Equipment Manufacturer
COGO	Coordinate Geometry (Programming Language)	COL	Computer Oriented Language
COMDEX	Computer Dealers Exposition	COMSAT	Communications Satellite Corporation
CONFIG	Configuration	COSMOS	Computer System for Mainframe Operations
CP/M	Control Program for Microcomputers [Digital Research]	CPA	Certified Public Accountant
CPE	Central Processing Element Customer Premise Equipment Customer Provided Equipment	CPI	Characters Per Inch Clock Per Instruction Common Programming Interface [IBM]
CPI-C	Common Programming Interface for Communications [IBM]	CPS	Characters Per Second
CPU	Central Processing Unit	CR	Carriage Return
CR/LF	Carriage Return/Line Feed	CRC	Cyclic Redundancy Check
CREN	Computer Research Education Network Corporation for Research and Educational Networking	CRF	Cross Reference File
CROM	Control Read Only Memory	CRT	Cathode Ray Tube
CRTC	CRT Controller	CS	Computer Science Chip Select Clear to Send Code Segment
CSD	Corrective Service Disk [IBM]	CSG	Constructive Solid Geometry Consulting Services Group [Lotus]
CSL	Computer Sensitive Language	CSMA/CD	Carrier Sense Multiple Access/with Collision Detection
CSNET	Computer Science Network	CSP	Commercial Subroutine Package CompuCom Speed Protocol [CompuCom]
CSS	Continuous System Simulator (Language)	CSTA	Computer-Supported Telephony Applications
CSU	Channel Service Unit	CSV	Comma-Separated Variables
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	Consistent User Interface Common User Interface [IBM]
CUP	Cursor Position	CUPID	Completely Universal Processor I/O Design [AST]
CURSOR	CURrent Set Of Records	CUTE	Clarkston University Terminal Emulator
CUU	Cursor Up	CVF	Compressed Volume File [Microsoft]
CVGA	Color Video Gaphics Array	CVIA	Computer Virus Industry Association
CVW	CodeView for Windows	CWIS	Campus Wind Information Systems [Internet]
CYA	Cover Your ASSets	CYL	Cylinder

Acc	Definition	Acc	Definition
D/A	Digital to Analog
D/R	Direct or Reverse	DAC	Data Acquisition and Control Digital to Analog Converter
DAL	Data Access Language [Apple Computer] Disk Access Lockout	DAM	Data Acquisition and Monitoring
DARI	Database Application Remote Interface [IBM]	DASD	Direct Access Storage Device
DAT	Digital Audio Tape Disk Array Technology	DATACOM	Data Communications
DB	Data Base Data Buffer	DB2	Database 2 [IBM]
DBC	DataBase Container	DBCS	Double-Byte Character Set
DBF	Database File (also a table that roughly conforms to the xBase style)	DBM	Data Base Manager
DBMS	Data Base Management System	DBS	Data Base Server
DC	Data Collection Data Communication Data Control Device Control Direct Current	DC/S	Distributed Client Server
DCA	Digital Communications Associates Document Content Architecture	DCAF	Distributed Console Access Facility [IBM]
DCB	Disk Coprocessor Board [Novell]	DCC	Digital Compact Cassette Display Combination Code
DCD	Data Carrier Detect	DCE	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]	DCL	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
DD	Data dictionary Day Digital Display Double Density	DDB	Device Dependent Bitmap
DDCMP	Digital Data Communications Message Protocol [DEC]	DDD	Direct Distance Dialing
DDE	Direct Data Entry Dynamic Data Exchange [Microsoft]	DDEML	Dynamic Data Exchange Manager Library [Microsoft]
DDK	Device Driver Kit [Microsoft Windows]	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	DEL	Delete
DES	Data Encryption Standard Data Entry Sheet	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]
DIB	Device Independent Bitmap	DIBOL	DEC Business Oriented Language
DID	Direct Inward Dialing	DIF	Data Interchange Format
DIIP	Direct Interrupt Identification Port	DIO	Data Input-Output
DIP	Dual In-line Package Dual In-line Pin	DIR	Directory
DIS	Dynamic Impedance Stabilization [CompuCom]	DISP	Displacement (offset)
DIV	Divide	DL	Download
DL/1	Data Manipulation Language 1 [IBM]	DLC	Data Link Control [IBM]
DLE	Data Link Escape	DLL	Dynamic Link Library
DLM	Dynamic Link Module	DLR	DOS LAN Requester
DMA	Direct Memory Access/Addressing	DMAC	DMA Controller
DME	Distributed Management Environment	DML	Data Management Language Data Manipulation Language
DMM	Digital Multimeter	DMMS	Dynamic Memory Management System
DMP	Dot Matrix Printer	DMS	Data Management Software Data Management System
DMTF	Desktop Management Task Force	DMY	Day Month Year
DN	Down	DNC	Direct Numerical Control
DNIS	Dialed Number Identification Service	DNS	Domain Naming System
DO	Data Out	DOS	Disk Operating System
DOSEM	DOS Emulation	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	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	DRV	Drive
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/Processor
DSQD	Double Sided Quad Density (diskette)	DSR	Data Set Ready Device Status Register Device Status Report
DSS	Decision Support System	DSW	Data Status Word Device Status Word
DTA	Disk Transfer Area	DTD	Document Type Definition
DTE	Data Terminal Equipment Dumb Terminal Emulator	DTL	Diode-Transistor Logic
DTP	Desktop Publishing	DTR	Data Terminal Ready Data Transfer Rate
DU	Disk Usage	DUAT	Direct User Access Terminal
DVI	Digital Video Interactive	DWG	Drawing
DXC	Data Exchange Control	DXF	Drawing Interchange Format
DOC(s)	Documentation user's manual

Acc	Definition	Acc	Definition
E-MAIL	Electronic Mail
EA	Extended Attribute [OS/2]	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	ECAL	Enjoy Computing And Learn
ECC	Error Check Code Error Checking and Correction Error Correction Code	ECD	Enhanced Color Display
ECMA	European Computer Manufacturers Association	ECP	Enhanced Capabilities Port [Microsoft]
ED	Erase Display	EDA	Embedded Document Architecture [Go Corporation]
EDC	Enhanced Data Correction 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)
EDOS	Enhanced DOS for Windows	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
EFF	Electronic Frontier Foundation	EFI	Electromechanical Frequency Interference
EFTS	Electronic Funds Transfer System	EGA	Enhanced Graphics Adapter
EIA	Electronic Industries Association	EIS	Executive Information System
EISA	Extended Industry Standard Architecture	ELF	Extremely Low Frequency
ELS	Entry Level System	EM	Electronic Mail Expanded Memory
EMB	Extended Memory Block [LIM/AST]	EMC	Extended Math Coprocessor
EMI	Electromagnetic Interference	EMM	Expanded Memory Manager
EMS	Electronic Mail System Electronic Message Service Expanded Memory Specification [LIM]	ENIAC	Electronic Numerical Integrator and Computer (First 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	EOS	End of String
EOT	End Of Transmission/Text/Tape	EPLD	Electrically Programmable Logic Device
EPM	Enhanced Editor for Presentation Manager [IBM]	EPP	Enhanced Parallel Port
EPROM	Electrically Programmable Read Only Memory Erasable Programmable Read Only Memory	ER	Enhancement request (request for a change to product or documentation)
EROM	Erasable Read Only Memory	ERR	Error
ESA	European Space Agency	ESC	Escape
ESD	Electronic Software Distribution	ESDI	Enhanced Small Device Interface
ESP	Emulation Sensing Processor Enhanced Serial Port [Hayes]	ESS	Electronic Switching System
ESU	Electro-Static Unit	ETB	End of Transmission Block
ETS	Econometric Time Series	ETX	End of Text
EVGA	Extended Video Graphics Array Extended Video Graphics Adapter	EWS	Employee Written Software [IBM]
EXP	Exponent	EXT	External
EXTRN	External Reference

Acc	Definition	Acc	Definition
F/T	Full Time
FAC	File Access Code	FAQ	Frequently Asked Questions
FAT	File Allocation Table	FAX	Facsimile
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
FDM	Frequency-Division Multiplexing	FEFO	First-Ended First-Out
FEP	Front End Processor	FET	Field Effect Transistor
FF	Flip-Flop Form Feed	FFT	Fast Fourier Transform
FIF	Fractal Image Format	FIFO	First-In First-Out
FILO	First-In Last-Out	FLC	Ferro-electric Liquid Crystal
FLD	Field	FLL	FoxPro Link Library
FLOPS	Floating Point Operations Per Second	FMS	Forms Management System
FMT	Format	FNT	Font
FOCUS	Forum of Control Data Users	FOG	First Osborne Group
FORTH	(Programming Language)	FORTRAN	Formula Translator (Programming Language)
FOSE	Federal Office Systems Exposition	FP	FoxPro (1.02 2.x and occasionally 3.0)
FPD	FoxPro for DOS	FPM	FoxPro for Macintosh
FPP	Fixed Path Protocol Floating Point Processor	FPS	Frames Per Second
FPU	Floating Point Processor Unit	FPW	FoxPro for Windows
FQDN	Fully Qualified Domain Name [Internet]	FRAG	Fragment Fragmentation
FRAM	Ferroelectric Random-Access Memory	FRED	Frame Editor
FRPI	Flux Reversals Per Inch	FSD	File System Driver [OS/2]
FTAM	File Transfer and Access Method	FTP	File Transfer Protocol [Internet]
FTS	Federal Telecommunication System	FUNC	Function
FWIW	For What It's Worth

Acc	Definition	Acc	Definition
G/L	General Ledger
GA	General Availability	GAAP	Generally Accepted Accounting Principles
GAL	Generic Array Logic	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)	GENIE	General Electric Network for Information Exchange
GEOS	Graphic Environment Operating System [Geoworks]	GHZ	Gigahertz
GIGO	Garbage In Garbage Out Garbage In Gospel Out	GIS	Geographical Information System
GIX	Global Internet Exchange [Internet]	GKS	Graphical Kernal System
GLM	General Linear Models	GMT	Greenwich Mean Time
GNU	Gnu's Not Unix (operating system)	GOSIP	Government Open Systems Interconnection Profile
GP	Gas Plasma General Purpose	GPF	General Protection Fault
GPI	Graphics Programming Interface	GPIB	General Purpose Interface Bus
GPS	Global Positioning System	GPSS	General Purpose Systems Simulator (language)
GRE	Graphics Engine	GUI	Graphical User Interface
GW-BASIC	Gee Whiz BASIC	Gb	Gigabit (1 000 megabits)

Acc	Definition	Acc	Definition
H/V	Horizontal/Vertical	H/W	Hardware
HACMP	High Availability Cluster Multi-Processing [IBM]	HAL	Heuristically Programmed Algorithmic (computer) [from 1968 movie "2001: A Space Odyssey"]
HASP	Houston Automatic Spooling Priority (System)	HBA	Host Bus Adapter
HD	Hard Disk High Density	HDA	Hard Disk Assembly
HDCD	High Definition Compatible Digital	HDFD	High-Density Floppy Disk
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	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]	HLL	High Level Language
HLLAPI	High Level Language Application Programming Interface	HLQ	High Level Qualifier
HLT	Halt	HMA	High Memory Area [Microsoft] Hub Management Architecture
HMOS	High Density Metal Oxide Semicnductor High Speed Metal Oxide Semiconductor	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	HRG	High Resolution Graphics
HRIS	Human Resource Information System	HRMS	Human Resource Management System
HS	High Speed	HSC	High Speed Channel
HSP	High Speed Printer	HST	High Speed Technology [U.S. Robotics]
HTH	Hope this helps	HTML	HyperText Markup Language
HZ	Hertz

Acc	Definition	Acc	Definition
I/F	Interface
I/O	Input/Output	IAB	Internet Activities Board [Internet]
IAC	In Any Case	IAE	In Any Event
IAL	International Algebraic Language (ALGOL was first called IAL)	IANA	Internet Assigned Numbers Authority [Internet]
IANAL	I Am Not A Lawyer	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]
ICOMP	Intel Comparative Microprocessor (index) [Intel]	ICP	Integrated Channel Processor
ICR	Intelligent Character Recognition	ICS	Intuitive Command Structure
ID	Identification Identifier	IDA	Integrated Digital Access Intelligent Disk Array Intelligent Drive Array
IDAPI	Integrated Database Application Programming Interface	IDE	Imbedded Drive Electronics Integrated Development Environment [Borlund] Integrated Drive Electronics Intelligent Drive Electronics Interactive Design and Engineering Interface Design Enhancement
IDMS	Integrated Data Base Management System	IDP	Integrated Data Processing
IDT	Interrupt Descriptor Table	IEEE	Institute of Electrical and Electronics Engineers
IEF	Information Engineering Facility	IETF	Internet Engineering Task Force
IFD	Image File Directory	IFG	Incoming Fax Gateway
IFS	Installable File System [OS/2]	IGA	Integrated Graphics Array
IGC	Integrated Graphics Controller	IIF	Immediate IF
IMDS	Image Data Stream (format) [IBM]	IMG	Image
IMHO	In My Honest/Humble Opinion (Humble? Yeah right	IMO	In My Opinion
IMP	Interface Message Processor	IMPA	Intelligent Multi-Port Adapter [DCA]
IMS	Information Management System Intermediate Maintenance Standards	IN	Input
INIT	Initialize	INM	Integrated Network Management
INS	Input String	INT	Integer Internal Interrupt
IOCS	Input/Output Control System	IOCTL	Input/Output Control
IOPL	Input/Output Priviledge Level	IOSGA	Input/Output Support Gate Array
IOW	In Other Words	IP	Instruction Pointer Internet Protocol
IPC	Instructions Per Clock Interprocess Communication	IPF	Information Presentation Facility
IPL	Initial Program Load Initial Program Loader	IPSE	Integrated Project Support Environment
IPX	Internetwork Packet Exchange [Novell]	IQL	Interactive Query Language
IRC	Internet Relay Chat [Internet]	IRL	Interactive Reader Language Inter-Repeater Link
IRM	Information Resource Management	IRQ	Interrupt Request
IS	Information System Interrupt Status	ISA	Industry Standard Architecture
ISAM	Indexed Sequential-Access Management/Method	ISD	Image Section Descriptor Instructional Systems Design
ISDN	Integrated Services Digital Network	ISI	Internally Specified Index
ISIS	Integrated Systems and Information Services	ISL	Interactive System Language
ISO/OSI	International Standards Organization/Open Systems Interconnection (model)	ISP	Internet Service Provider [Internet] Interrupt Status Port
ISPF	Interactive System Programming Facility	ISR	Information Storage and Retrieval Interrupt Service Routines
ISV	Independent Software Vendor	ITB	Information Technology Branch Intermediate Text Block
ITC	International Typeface Corporation	ITU	International Telecommunication Union
ITUG	International Telecommunications User Group	ITV	Interactive Television
ITX	Intermediate Text Block	IV&V	Independent Verification & Validation
IVIS	Interactive Video Information System	IVR	Interactive Voice Response
IVS	Interactive Videodisk System

Acc	Definition	Acc	Definition
JAD	Joint Application Design
JCL	Job Control Language	JEDEC	Joint Electronic Devices Engineering Council
JEIDA	Japanese Electronics Industry Development Association	JES	Job Entry System
JIC	Just In Case	JPEG	Joint Photographic Experts Group
JPL	Jet Propulsion Laboratory

Acc	Definition	Acc	Definition
KB	Keyboard Kilobyte (1 024 bytes)
KBD	Keyboard	KBD$	Keyboard [OS/2]
KBPS	Kilo-Bytes Per Second	KDT	Key Definition Table
KOW	Knock on wood	KRS	Knowledge Retrieval System
KSR	Keyboard Send Receive

Acc	Definition	Acc	Definition
LADDR	Layered Device Driver Architecture [Microsoft]
LAN	Local Area Network	LAWN	Local Area Wireless Network
LB	Left Button	LBL	Label
LBR	Librarian	LBT	Listen Before Talking
LCD	Liquid Crystal Display	LDC	Lotus Development Corporation
LED	Light Emitting Diode	LEM	Language Extension Module
LEX	Lexicon	LF	Line Feed
LFU	Least Frequently Used	LIFO	Last In First Out
LILO	Last In Last Out	LIM	Lotus/Intel/Microsoft
LIMA	Lotus/Intel/Microsoft/AST	LIMS	Library Information Management System
LISP	List Processing (Language)	LLC	Logical Link Control
LLFF	Low level file functions	LM/X	LAN Manager for Unix
LMI	Local Management Interface	LN	Logarithm (Natural)
LNDI	Lotus Notes:Document Imaging	LOC	Loop On-Line Control
LOG	Logarithm (Base 10)	LOGO	(Programming Language)
LOL	Laugh Out Load	LORE	Line Oriented Editor
LPD	Line Printer Daemon (protocol) [Berkley]	LPI	Lines Per Inch
LPL	Lotus Programming Language [Lotus 1-2-3]	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
LR	Language Reference manual	LRC	Longitudinal Redundancy Check
LRU	Least Recently Used	LSA	Line Sharing Adapter
LSI	Large Scale Integration	LST	List
LTR	Letter	LU	Logical Unit
LUT	Lookup Table

Acc	Definition	Acc	Definition
M$	Microsoft
MAC	Media/Medium Access Control	MAN	Manual Metropolitan Area Network
MAP	Maintenance Analysis Procedures Manufacturing Automation Protocol Memory Allocation Map	MAPI	Mail/Messaging Applications Programming Interface [Microsoft]
MAPICS	Manufacturing Accounting and Production Information Control System [IBM]	MASM	Macro Assembler [Microsoft]
MAX	Maximum	MB	Megabyte (1 000 kilobytes) Middle Button (of 3 button Mouse)
MBASIC	Microsoft BASIC [Microsoft]	MBPS	Megabytes Per Second
MBX	Mailbox	MCA	Micro Channel Architecture [IBM]
MCB	Memory Control Block	MCI	Media Control Interface [Microsoft]
MCL	Microsoft Compatibility Labs [Microsoft]	MD	Make Directory Monochrome Display
MDA	Monochrome Display Adapter	MDI	Multiple Document Interface
MDK	Multimedia Developers Kit [Microsoft]	MDR	Minimum Design Requirement
MDY	Month Day Year	MEB	Memory Expansion Board
MEG	Megabyte	MFFS	Microsoft Flash File System [Microsoft]
MFLOPS	Million Floating Point Operations Per Second	MFT	Multiprogramming with a Fixed number of Tasks
MGA	Monochrome Graphics Adapter	MGR	Manager
MHS	Message Handling Service Message Handling System	MHZ	Megahertz
MIDI	Musical Instrument Digital Interface	MIME	Multipurpose Internet Mail Extension [Internet]
MIN	Minimum	MIPS	Million Instructions Per Second
MIS	Management Information System	MISC	Miscellaneous
ML	Machine Language	MM	Minutes Month
MMI	Man Machine Interface	MMU	Memory Management Unit
MNP	Microcom Networking Protocol	MOD	Modem Modulus
MODEM	Modulator Demodulator	MOHLL	Machine Oriented High Level Language
MP	Multiple Processors	MPC	Multimedia Personal Computer
MPEG	Moving Picture Experts Group	MPP	Massively Parallel Processing Message Processing Program Microcom Network Protocol [Microcom]
MPU	Microprocessor Unit	MRI	Magnetic Resonance Imaging
MRP	Materials Requirement Planning	MRT	Mean Repair Time
MS	Memory System Message Store Microsecond Microsoft Corporation Millisecond	MS-DOS	Microsoft-Disk Operating System [Microsoft]
MSB	Most Significant Bit	MSCDEX	Microsoft CD Extensions [Microsoft]
MSD	Mass Storage Device Most Significant Digit	MSG	Message
MSI	Medium Scale Integration	MSL	Map Specification Library
MTA	Message Transfer Agent Multiple Terminal Access	MTBB	Mean Time Between Breakdowns
MTBF	Mean Time Between Failures	MTS	Message Transfer Service/System
MTTF	Mean Time To Failure	MTTR	Mean Time To Repair
MTU	Maximum Transmission Units	MU	Multi-user
MUMPS	Massachusetts General Hospital Utility Multi-Programming System (Programming Language)	MUX	Multiplexer
MVDM	Multiple Virtual DOS Machines	MVGA	Monochrome Video Graphics Array
MVP	Most Valuable Professional	MVS	Multiple Virtual Storage [IBM]
MVT	Multiple Variable Tasks [IBM]	MX	Mail Exchanger [Internet]

Acc	Definition	Acc	Definition
NACD	National Association of Computer Dealers
NAS	Network Application Support [DEC]	NASA	National Aeronautics and Space Administration
NBI	Nothing But Initials	NBS	National Bureau of Standards
NC	Numerical Control	NCA	Network Communications Adapter
NCC	Network Control Center	NCGA	National Computer Graphics Association
NCIC	National Crime Information Center	NCP	Network Control Program Not Copy Protected
NCR	National Cash Register (Company)	NCSI	Network Communications Services Interface [Novell]
NDA	Non Disclosure Agreement	NDEF	Not Defined
NDIS	Network Driver Interface Specification	NDP	Numeric Data Processor
NEC	Nippon Electric Company	NEG	Negative
NFF	No Fault Found	NFS	Network File System
NG	No Good	NHC	National Hurricane Center
NIC	Network Information Center [Internet]	NICAD	Nickel Cadmium
NID	New Interactive Display [NEC] Next ID	NIPS	Network I/Os Per Second
NISO	National Information Standards Organization	NIST	National Institute for Standards and Technology
NJE	Network Job Entry [IBM]	NL	New Line
NLE	Not Less or Equal	NLM	NetWare Loadable Module [Netware]
NLQ	Near Letter Quality	NLS	National Language Support [OS/2]
NMI	Non-Maskable Interrupt	NMOS	Negative Channel Metal-Oxide Semiconductor
NMS	Network Management System [Novell]	NNTP	Network News Transfer Protocol [Internet]
NOC	Network Operations Center	NOP	No Operation
NOR	Not Or	NOS	Network Operating System
NPA	Network Printer Alliance	NPI	Network Printer Interface
NPL	Nonprocedural Language	NREN	National Research and Education Network
NRZ	Not Return to Zero	NRZI	Non Return to Zero Inverted
NS	Nanosecond Network Supervisor Non Stop	NSA	National Security Agency
NSF	National Science Foundation	NSTL	National Software Testing Labs
NT	Windows NT	NT	New Technology [Microsoft]
NTF	No Trouble Found	NTFS	New Technology File System [Microsoft]
NUI	Network User Identification Network User Interface Notebook User Interface [Go Corporation]	NUL	Dummy Device No Device
NVM	Non-Volatile Memory	NVRAM	Non-Volatile Random Access Memory
NetBEUI	NetBIOS Extended User Interface [IBM]	NetBIOS	Network Basic Input/Output System [IBM]

Acc	Definition	Acc	Definition
OAG	Official/Online Airline Guide	OAI	Open Applications Interface
OBJ	Object	OCL	Operater Control Language
OCR	Optical Character Recognition	ODA	Office Document Architecture
ODAPI	Open Database Application Programming Interface [Borlund]	ODBC	Open Database Connectivity
ODBC	Open Database Connectivity (driver) [Microsoft]	ODBMS	Object-Oriented Database Management System
ODI	Open Datalink Interface [Novell]	ODS	Open Data Services [Microsoft]
OEM	Original Equipment Manufacturer	OH	Off Hook
OIC	Oh I see	OIS	Office Information Systems
OKL	On key label	OLE	Object Linking and Embedding [Microsoft]
OLI	Optical Phone Line Interface [AT&T]	OLTP	On-Line Transaction Processing
OMF	Object Module Format [Microsoft]	OMG	Object Management Group
OMI	Open Messaging Interface [Lotus]	OMNS	Open Network Management System
OMR	Optical Mark Recognition	ONC	Open Network Computing [Sun]
OO(P)	Object oriented (programming)	OOAD	Object Oriented Application Design/Development
OODB	Object-Oriented Database	OOL	Object-Oriented Language
OOP	Object Oriented Programing	OOPL	Object-Oriented Programming Language
OOPS	Object Oriented Programming and Systems	OOS	Object-Oriented Systems Off-line Operating Simulator
OP	Operation Optical Output	OP CODE	Operational Code
OPAC	Online Public Access Catlog [Internet]	OPD	Operand
OPI	Open Prepress Interface	OPM	Operations Per Minute
OPS	Operations	OPT	Open Protocol Technology
ORACLE	On-Line Inquiry and Report Generator (UNIX DB program)	ORS	Output Record Separator
OS	Operating System	OS/2	Operating System Two [IBM]
OS/E	Operating System/Environment	OSA	Open System Architecture
OSF	Open Software Foundation	OSI	Open Systems Interconnection
OSM	Off-Screen Model	OSPF	Open Shortest Path First
OSQL	Object Structured Query Language	OT	Object Technology
OTOH	On the other hand	OWL	Object/Open Windows Library

Acc	Definition	Acc	Definition
P-SRAM	Pseudo-Static Random Access Memory	P/T	Part Time
PABX	Private Automatic Branch Exchange	PAD	Packet Assembler/Disassembler
PADS	Pen Application Development System [Slate Corporation]	PAL	Programming Assembly Language
PAR	Parallel	PARA	Paragraph
PARC	Palo Alto Research Center [XEROX]	PASCAL	Programming Language named for Blaise Pascal inventor of the 1st computing engine
PBX	Private Branch Exchange	PC	Personal Computer
PC-DOS	Personal Computer - Disk Operating System (IBM version of MSDOS)	PC-I/O	Program Controlled I/O
PCB	Printed Circuit Board Program Control Block	PCI	Peripheral Component Interconnect [Intel]
PCL	Printer Command Language [HP] Process Control Language	PCM	Personal Computer Manufacturer
PCMCIA	Personal Computer Memory Card International Association	PCMIA	PC Memory-Card International Association
PCNFS	Personal Computer Network File System	PCS	Patchable Control Store Planning Control Sheet Print Contrast Signal Process Control Systems Program Counter Store Programmable Drive Table Project Control System
PD	Public Domain	PDA	Personal Digital Assistant
PDF	Program Development Facility	PDL	Page Description Language Program Description Language Program Design Language
PDN	Public Data Network	PDS	Partitioned Data Set
PDT	Programmable Drive Table	PE	Parity Even Protect Enable
PEL	Picture Element [IBM]	PEM	Properties/Events/Methods
PERT	Program Evaluation and Review Technique	PGDN	Page Down
PGM	Program	PGUP	Page Up
PI	Program Interruption	PIA	Peripheral Interface Adapter
PIC	Priority Interrupt Controller Program Interrupt Controller	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
PITA	Pain In The Accronym (among other possibilities)	PIXEL	Picture Element
PL/1	Programming Language One [IBM]	PL/M	Programming Language for Micros [INTEL]
PLA	Programmable Logic-Array	PLATO	Programmed Logic for Automatic Teaching Operations
PLC	Programmable Logic Controller	PLD	Programmable Logic Device
PLL	Phase Locked Loop	PM	Presentation Manager [IBM] Preventative Maintenance
PMFJI	Pardon Me For Jumping In	PMFJOT	Pardon Me For Jumping Off Topic
PMMU	Paged Memory Management Unit	PMOS	Positive Channel Metal Oxide Semiconductor
PO	Parity Odd	POL	Problem Oriented Language
POOP	Proper object oriented programming ("If it's not POOP it's crap")	POP	Point Of Presence [MCI] Pop from Stack Post Office Protocol
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
POV	Point of view	PPDS	Personal Printer Data Stream [IBM]
PPM	Pages Per Minute	PPP	Point-to-Point Protocol [Internet]
PRG	Program file	PRMD	Private Mangement Domain [X.400}
PRN	Printer	PROC	Procedure
PROFS	Professional Office System [IBM]	PROG	Program Programmer
PROLOG	Programming In Logic (Programming Language)	PROM	Programmable Read Only Memory
PRTSC	Print Screen	PS	Proportional Spacing
PS/2	Programming System 2 [IBM]	PSC	Product Service Center
PSF	Permanent Swap File	PSP	Program Segment Prefix
PSW	Program Status Word	PT	Page Table
PTD	Parallel Transfer Disk Drive	PUB	Publication Publish
PWB	Printed Wire Board Programmer's Workbench [Microsoft]	PWR	Power

Acc	Definition	Acc	Definition
QA	Quality Assurance	QBE	Query By Example
QC	Quality Control	QDOS	Quick and Dirty Operating System
QIC	Quarter-Inch Cartridge

Acc	Definition	Acc	Definition
R&D	Research and Development
R-O	Read Only	R/W	Read/Write
RA	Return Authorization	RACF	Resource Access Control Facility
RAD	Rapid Application Development	RAID	Redundant Arrays of Independent Disks
RALU	Register Arithmetic Logic Unit	RAM	Random Access Memory
RAND	Random	RAP	Rapid Application Prototyping
RAS	Reliability Availability and Serviceability	RB	Right Button (of 2 or 3 button Mouse)
RBBS	Remote Bulletin Board System	RCS	Records Communications Switching System
RD	Receive Data	RDA	Remote Database Access
RDB	Relational Data Base	RDBMS	Relational DataBase Management System
REG	Register	REM	Remark Remote
REQ	Request	RES	Reset Resolution
RES	Remote Execution Service	RET	Return
REXX	Restructured Extended Executor (language) [IBM]	RFC	Request For Comments [Internet]
RFP	Request for Proposal	RFS	Remote File System
RFT	Rich Text Format	RFU	Reserved For Future Use
RI	Referential Integrity	RI	Referential Integrity
RIFF	Resource Interchange File Format [Microsoft]	RIITTSS	Reality Impaired Individuals with Tendencies Toward Satiric Surrealism
RIM	Remote Installation and Maintenance [Microsoft]	RISC	Reduced Instruction Set Computer
RJE	Remote Job Entry	RMA	Return Material/Manufacturer Authorization
RMON	Remote Monitor/Monitoring	RMS	Record Management Services Root Mean Square
RND	Random	ROFL	Roll On the Floor Laughing
ROM	Read Only Memory	RPG	Report Program Generator (Programming Language)
RPQ	Request for Price Quotation	RPT	Repeat
RQBE	Relational Query By Example [Fox Pro]	RSCS	Remote Spooling Communications System
RSN	Real soon now (AKA "hold your breath")	RST	Reset
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	RTF	Rich Text Format
RTFM	Read The Ficticious/Fabulous/Funky Manual	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)
RW	Report writer	RWM	Read-Write Memory

Acc	Definition	Acc	Definition
S/H	Sample and Hold	S/N	Signal-to-Noise (Ratio)
S/W	Software	SAA	Systems Application Architecture [IBM]
SADL	Synchronous Data Link Control [Racal-Vadic]	SAS	Sales Accounting System
SB	Sound Board	SBC	Single-Board Computer
SBCS	Single-Byte Character Set	SCC	Serial Communications Controllers Serial Controller Chip Synchronous Channel Check [IBM]
SCD	Standard Color Display	SCF	System Control Facility
SCM	Software Configuration Management	SCO	Santa Cruz Operation (Software Company)
SCOPE	Simple Communications Programming Enironment [Hayes]	SCP	Save Cursor Position Subsystem Control Port System Control Program
SCR	Silicon Controlled Rectifier	SCRN	Screen (video display)
SCSI	Small Computer Systems Interface	SD	Send Data
SDA	Software Disk Array Source Data Automation System Display Architecture [Digital]	SDF	Space Delimited File Space Delimited Format
SDK	Software Developer's Kit [Microsoft]	SDLC	Synchronous Data Link Control (protocol)
SDN	Software Defined Network [AT&T]	SDNS	Secure Data Network Service
SDR	Streaming Data Request	SDS	Sysops Distribution System
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	Softwave Engineering Technology
SEU	Smallest Executable Unit	SFQL	Structured Full-text Query Language
SFT	System Fault Tolerance	SFX	Sound Effect(s)
SGDT	Store Global Descriptor Table	SGEN	Signal Generator System Generator
SGML	Standard Generalized Markup Language	SGR	Set Graphics Rendition
SI	Source Index System Information	SID	Station Identification [AT&T] Symbolic Interactive Debugger
SIDT	Store Interrupt Descriptor Table	SIG	Special Interest Group
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	SISO	Serial In Serial Out
SIT	Special Information Tones	SLDT	Store Local Descriptor Table
SLIP	Serial Line Interface Protocol	SLMR	Silly Little Modem Reader
SLSI	Super Large-Scale Integration	SM	Set Mode
SMB	Server Message Block (protocol) [MII]	SMD	Surface Mounted Device
SMDS	Switched Multi-Megabit Data Service	SMF	System Manager Facility [Compaq]
SMI	System Management Interrupts [Intel]	SMIF	Standard Mechanical Interface
SMK	Software Migration Kit [Microsoft]	SMM	System Mangement Mode
SMP	Symbolic Manipulation Program Symmetrical Multiprocessor (machine)	SMPS	Switching Mode Power Supply
SMRAM	System Management Random Access Memory	SMSW	Store Machine Status Word
SMT	Surface-Mount Technology	SMTP	Simple Mail Transfer Protocol
SMU	System Management Utility	SN	Serial Number
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
SOC	System On a Chip	SOE	Standard Operating Environment
SOH	Start of Heading	SOL	Simulation Oriented Language
SOM	Start of Message System Object Model [IBM]	SOP	Standard Operating Procedures
SOS	Silicon On Sapphire Standards and Open Systems	SOTA	State Of The Art
SOX	Sound Exchange	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	Shortest Path First System Programming Facility	SPI	Service Provider Interface
SPIKE	Science Planning Intelligent Knowledge-Based Environment [STScI]	SPL	Spooler
SPOOL	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
SRAM	Shadow Random Access Memory Static Random Access Memory	SRD	Screen Reader System
SRO	Sharable and Read Only Standing Room 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
STD	Standard	STDA	StreetTalk Directory Assistance [Banyan]
STDAUX	Standard Auxillary	STDERR	Standard Error
STDIN	Standard Input	STDOUT	Standard Output
STDPRN	Standard Printer	STP	Shielded Twisted Pair (cable) Signal Transfer Point
STR	Store Task Register Synchronous Transmitter Receiver	STRESS	Structural Engineering System Solver (Programming Language)
STRUDL	Structural Design Language (Programming Language)	STX	Start of Text
SU	Single user	SUB	Subroutine Substitute Subtract
SVGA	Super Video Graphics Array	SYNC	Synchronous
SYS	System	SYSGEN	System Generator
SYSLOG	System Log	SYSMOD	System Modification
SYSOP	System Operator	SYSREQ	System Request

Acc	Definition	Acc	Definition
T/B	Top and Bottom	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)
TCP/IP	Transmission Control Protocol/Internet Protocol	TD	Transmit Data
TDE	Terminal Display Editor	TDM	Time Division Multiplexing
TDMS	Terminal Display Management System	TDR	Time Domain Reflectometry
TDSR	Transmitter Data Service Request	TE/2	Terminal Emulator/2 [Oberon]
TEC	Tokyo Electronics Corporation	TED	Tiny Editor
TEML	Turbo Editor Macro Language [Borlund]	TERMPWR	Terminator Power
TFDD	Text File Device Driver	TFT	Thin-Film Transistor (screens)
THOR	Tandy High-Performance Optical Recording	TI	Texas Instruments Inc.
TIA	Thanks In Advance	TID	Target ID
TIES	Time Independent Escape Sequence	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
TLI	Transport Layer Interface	TLU	Table Lookup
TM	Trademark	TMP	Temporary
TN	Twisted Nematic	TNC	Terminal Node Controller
TOP	Technical and Office Protocol	TP	Transaction processing
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	Transaction Processing System
TPW	Turbo Pascal for Windows	TQM	Total Quality Management
TR	Terminal Ready	TRON	The Real-Time Operating System Nucleus
TS	Top Secret Time Stamp	TSA	Technical Support Alliance
TSB	Termination Status Block	TSO	Time Sharing Option
TSR	Terminate Stay Resident Program	TSS	Task State Segment Time Sharing System
TTL	Transistor-Transistor Logic	TTS	Transaction Tracking System
TTY	Teletype	TUI	Text-Based User Interface [WordPerfect]
TWX	Teletypewriter Exchange Service	TXD	Transmitted Data
TXT	Text

Acc	Definition	Acc	Definition
UA	User Agent User Area
UAE	Unrecoverable Application Error	UART	Universal Asynchronous Receiver/Transmitter
UCL	Universal Communications Language	UDC	User Defined Commands
UDF	User Defined Functions	UDP	User Datagram Protocol
UG	User's Group	UI	Unix International
UID	User Identifier	UL	Upload
ULSI	Ultra Large Scale Integration	UMB	Upper Memory Block [LIM/AST]
UNC	Universal Naming Convention	UNICOM	Universal Integrated Communication System
UNIVAC	Universal Automatic Computer	UNIX	AT&T Bell Laboratories Operating System
UPC	Universal Product Code	UPL	User Program Language
UPS	Uninterruptible Power Supply	USART	Universal Synchronous-Asynchronous Reciever/Transmitter
USERID	User Identification	USR	US Robotics Inc
USRT	Universal Synchronous Receiver/Transmitter	UT	User Terminal Universal Thread
UTI	Universal Text Interchange	UTP	Unshielded Twisted-Pair cable
UUCP	Unix-To-Unix Copy Program	UUI	User-To-User Information [AT&T]
UV	Ultraviolet

Acc	Definition	Acc	Definition
VA	Virtual Address
VAD	Value Added Dealer	VAL	Value Voice Application Language
VAM	Virtual Access Method	VAN	Value Added Network
VAP	Value Added Processes	VAR	Value Added Reseller Value Added Retailer Variable
VAX/VMS	Virtual Address Extension/Virtual Memory System [DEC]	VB	Variable Block Visual Basic [Microsoft]
VCD	Virtual Communications Driver	VCPI	Virtual Control Program Interface
VCR	Video Cassette Recorder	VDD	Virtual Device Driver
VDDM	Virtual Device Driver Manager	VDE	Video Display Editor
VDISK	Virtual Disk	VDM	Virtual DOS Machine [IBM]
VDS	Virtual DMA Services	VDT	Video Display Terminal
VDU	Video Display Unit Visual Display Unit	VEMM	Virtual Expanded Memory Manager
VER	Verify Version	VESA	Video Electronics Standards Association
VFOX	Visual FoxPro	VFP	Visual FoxPro
VFPYP	Visual FoxPro Yellow Pages
VGA	Video Graphics Array	VGC	Video Graphics Controller
VHS	Very High Speed Virtual Host Storage	VHSIC	Very High Speed Integrated Circuit
VIM	Vendor Independent Messaging (interface)	VINES	Virtual Network Operating System [Banyan]
VIO	Video Input/Output Virtual Input/Output	VIP	Variable Information Processing
VIPER	Verifiable Integrated Processor for Enhanced Reliability	VL-BUS	Vesa Local-Bus [VESA]
VLF	Very Low Frequency	VLSI	Very Large Scale Integration
VLT	Variable List Table	VM	Virtual Machine
VMB	Virtual Machine Boot	VMM	Virtual Memory Manager
VMOS	Vertical MOS	VMS	Virtual Memory System Voice Message System
VMT	Virtual Memory Technique	VOL	Volume
VOM	Volt Ohm Meter	VPD	Virtual Printer Device
VPDS	Virtual Private Data Service [MCI]	VR	Voltage Regulator
VRAM	Video Random Access Memory	VROOMM	Virtual Real-time Object Oriented Memory Manager [Borlund]
VRU	Voice Response Unit	VS	Virtual Storage
VSAM	Virtual Storage Access Method	VSE	Virtual Storage Extended
VSLI	Very Large Scale Integration	VSM	Virtual Storage Management
VSOS	Virtual Storage Operating System	VTAM	Virtual Telecommunications Access Method [IBM]

Acc	Definition	Acc	Definition
W/O	Without	WAIS	Wide Area Information Server/Service
WAITS	Wide Area Information Transfer System	WAN	Wide Area Network
WATS	Wide Area Telecommunications Service	WC	Word Count
WFW	Windows For Workgroups [Microsoft]	WGS	Work Group System
WIN	Windows (often has 3.1/95/NT after it)	WINWORD	Word For Windows [Microsoft]
WISE	WordPerfect Information System Environment	WNIC	Wide-Area Network Interface Co-Processor
WNIM	Wide-Area Network Interface Module	WORM	Write Once Read Many
WOSA	Windows Open Services Architecture [Microsoft]	WP	WordPerfect Word Processing Write Protected
WPHD	Write-Protect Hard Disk	WPM	Words Per Minute
WPS	Windows Printing System [Microsoft] Workplace Shell [OS2]	WS	WordStar Workstation
WT	Write Through	WYSIWYG	What You See Is What You Get
WYWO	While You Were Out

Acc	Definition	Acc	Definition
XA	Extended Architecture Extended Attribute	XAPIA	X.400 Application Program Interface Association
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) [Xerox]
XOFF	Transmitter Off	XON	Transmitter On
XOR	Exclusive OR	XSMD	Extended Storage Module Drive (interface)
XTAL	Crystal	XTCLK	External Transmit Clock

Acc	Definition	Acc	Definition
YAcc	Yet another ... [as in YACC Yet Another Compiler Compiler]

Acc	Definition	Acc	Definition
ZBB	Zero Based Budget (imaginary budgeting process)	ZDS	Zenith Data Systems
ZIF	Zero-Insertion Force (socket)	ZIP	Zigzag In-Line Package Zone Improvement Plan (ZIPcode)

Ext	File Type	Ext	File Type
.$$$	Temporary File	.ADF	Adapter Description File [IBM]
.ADN	Add In Utility [Lotus 1-2-3]	.AFM	Adobe Font Metrics [Adobe Systems]
.APP	Application [R:Base]	.ARC	Archive
.ASC	ASCII text	.ASM	Assembler Source Language
.BAK	Backup	.BAS	Basic Language
.BAT	Batch Processing	.BGI	Borland Graphic Interface
.BIB	Bibliography	.BIN	Binary
.BK	Backup [WordPerfect]	.BLD	BASIC Bload Graphics
.BMP	Bitmap Graphics [Windows]	.C	C source code
.CAT	Catalog	.CBL	COBOL source code
.CDF	Comma Delimited Format	.CDX	Compound Index [Fox Pro]
.CFG	Configuration	.CGM	Computer Graphics Metafile Graph [Lotus 1-2-3]
.CHK	CHKDSK	.CLP	Clipboard [Windows]
.CMD	Command	.CNF	Configuration
.COB	COBAL source code	.COD	Code List
.COM	Command	.CPI	Code Page Information [MS-DOS]
.CRD	Cardfile	.CUR	Cursor
.DAT	Data	.DBF	Database
.DCT	Dictionary	.DEF	Definitions Defaults
.DEM	Demonstration	.DES	Description
.DHP	Dr. Halo PIC	.DIC	Dictionary
.DOC	Document Documentation	.DRS	WordPerfect Driver Resource
.DRV	Device Driver	.DRW	Draw Drawing
.DTA	Data	.DV	DESQview Script
.DVR	Device Driver	.DXB	Drawing Interchange Binary [AutoCAD]
.EML	Electronic Mail	.ENC	Encoded
.EPS	Encapsulated PostScript	.EXE	Executable
.FAX	Fax	.FON	Font Phone Phone Directory
.FOR	FORTRAN source code	.FRS	WordPerfect Graphics Driver
.GIF	Graphic Interchange Format	.GLY	Glossary [Microsoft Word]
.GRF	Graph	.GRP	Group
.H	Header [C]	.HLP	Help
.HST	History Host	.HYP	Hyphenation
.ICO	Icon	.IDX	Index
.INF	Information	.INI	Initialize
.LBR	Library	.LET	Letter
.LIB	Library	.LRS	Language Resource [WordPerfect]
.LST	List	.MAC	MacPaint Macro
.MAI	Mail	.MAP	Linker Map
.MDF	Menu Definition File	.ME	Information file as in READ.ME
.MEN	Menu	.MNU	Menu
.MSG	Program Message	.MSP	Microsoft Paint [Microsoft]
.NDX	Index	.NEW	New Information
.OLD	Old version	.OPT	Options
.ORI	Original	.OUT	Outlines
.OVL	Program Overlay	.OVR	Program Overlay
.PAK	Packed	.PAS	PASCAL source code
.PAT	Patch	.PCT	Picture
.PCX	Picture Image	.PDF	Printer Description [Borlund Lotus]
.PDX	Paradox files [Borland]	.PFM	Printer Font Metrics [Windows]
.PGL	Graphics [Hewlett-Packard]	.PGP	ProGram Parameter [AutoCAD]
.PHO	Phone or Photo List	.PIC	Graph [Lotus 1-2-3]
.PLL	Prelinked Library [Clipper]	.PRD	Printer Driver [Word]
.PRF	Preferences [Grammatik IV]	.PRO	Profile
.PRS	Printer [WordPerfect]	.PS	PostScript
.PUB	Publication [Ventura]	.PX	Primary Index [Paradox]
.QDI	Dictionary [Quicken]	.QDT	Data [Quicken]
.QIF	Quicken Interchange Format	.QMT	Memorized List [Quicken]
.QNX	Indexes to Data [Quicken]	.REC	Recorder
.REF	Reference	.RES	Resource
.SAV	Saved	.SCR	Script
.SDF	Standard Data Format	.SET	Driver Set [Lotus 1-2-3] Image Settings [Paradox]
.SPL	Spell Checker	.STF	Structured File [Lotus Agenda]
.STY	Style [Ventura Word WordPerfect]	.SUP	Supplemental Dictionary [WordPerfect]
.SWP	Swap	.SYM	Symbols
.SYN	Synonym	.SYS	System Configuration
.TBK	Toolbook	.TDF	Trace Definition File [OS/2] Typeface Definition File
.TFM	Tagged Font Metric	.THD	Thread
.THS	Thesaurus	.TIF	Tagged Image File
.TLX	Telex	.TRM	Terminal
.TST	Test	.TTF	TrueType Font
.TUT	Tutorial	.VAL	Validity Checks [Paradox]
.VRS	WordPerfect Graphics Driver	.WAV	Waveform Audio
.WK1	Worksheet [Lotus 1-2-3]	.WKB	Workbook [WordPerfect]
.WKE	Worksheet [Lotus 1-2-3]	.WKQ	Spreadsheet
.WKS	Worksheet [Lotus 1-2-3]	.WKZ	Compressed Spreadsheet
.WMF	Windows Metafile [Microsoft]	.WPG	Graphics [WordPerfect]
.WPK	Keyboard [WordPerfect]	.WPM	Macro [WordPerfect]
.WQ	Compressed Spreadsheet	.WQ1	Spreadsheet
.ZIP	Compressed File [PKWare]	.ZOO	Compressed File

Sym	Definition	Sym	Definition
<bg>	Big Grin	<d>	Duck (from the target of your joke -- usually Tom)
<eg>	Evil Grin	<g>	Grin
<gd&r>	Grin Duck && Run (from the target of your joke)	<gd&rvvf>	gd&r Very Very Fast
<rbg>	Really Big Grin	<roc l>	The comment was so funny you're rocking on your chair (couch ceiling) laughing
<rof l>	The comment was so funny you're rolling on floor laughing	<s>	Smile

DevCon 2003

Date	Content	Detail
29/07 10:59	News	.NET 4 for VFP Developer...
26/07 10:13	Jobs	VFP Developer (Two Perma...
25/07 06:44	News	With Visual WebGui 6.4 R...
24/07 11:00	Jobs	Quality Assurance Softwa...
24/07 10:53	Jobs	Integrations and Web Dev...
19/07 21:00	News	DevTeach is announcing a...
19/07 15:37	Jobs	Visual FoxPro Developer
15/07 16:32	Meeting	Interacting with Interne...
15/07 11:54	Jobs	Implemention consultant
13/07 17:08	News	Stonefield Query 4.0 Rel...
08/07 10:03	Meeting	Access Programming
08/07 08:23	News	Visual Studio 2010 Ecosy...
07/07 10:12	Meeting	Collections--Managing Da...
30/06 13:55	News	Xceed's June 2010 Newsle...
24/06 14:44	News	Southwest Fox 2010 Early...