Glossary of Computer and
  Usenet terms and acronyms


Glossary 0 to 9
286 Intel 80286 processor
2D Two (bi) Dimensional: x and y axes
2K 2000
386 Intel 80386 processor
386MAX Qualitas 386 Expanded Memory Manager (386MAX.SYS)
3D Three (tri, 3) Dimensional: x, y and z axes
3dfx 3d Graphics Interactive (Voodoo family 3D chipsets)
3DNow! AMD K6 / K7 / Athlon / Duron CPU multimedia extensions
3DRAM 3D Dynamic Random Access Memory
3GIO Third Generation Input / Output (PCI 3.0) bus architecturC: 64-bit, 133 / 266 MHz, 6.6 GB/sec Intel / IBM / Compaq / Microsoft / Dell)
486 Intel 80486 processor
586 Intel 80586 processor (Pentium / Pentium Pro)
686 Intel 80686 processor (Pentium II / III / IV)
86 Intel 80X86 central processing unit (CPU)
87 Intel 80X87 floating point unit (FPU, math co-processor)
Glossary A
A3D Aureal 3D surround sound technology
AA Anti-Aliasing edge smoothing technology (3D video)
AAAS American Association for the Advancement of Science
AAF Advanced Authoring format (Microsoft video)
AC Alternating Current
AC-3 Dolby Digital 51 Surround Sound standard (5 + 1 = 6 channels)
ACPI Advanced Configuration Power Interface
ADC Analog to Digital Converter
ADPCM Adaptive Differential Pulse Code Modulation
ADSL Asymmetrical Digital Subscriber Line modem
ADVD Audio Digital Versatile Disc
AFM Atomic Force Microscope
AFR Alternate Frame Rendering (ATI Rage Fury MAXX)
AGP Accelerated Graphics Port technology standard (Intel)
AGP-1x Accelerated Graphics Port technology 1st generation standard: 66 MB/sec bandwidth (Intel)
AGP-2x Accelerated Graphics Port technology 2nd generation standard using sidebands: 133 MB/sec bandwidth (Intel)
AGP-4x Accelerated Graphics Port technology 3rd generation standard using fast writes: 266 MB/sec bandwidth (Intel)
AGP-8x Accelerated Graphics Port technology 4th generation standard: 532 MB/sec bandwidth (Intel)
AGRAS Anti-Glare Anti-Reflection Anti-Static screen treatment (CRT)
AI Artificial Intelligence
AIFF Audio Interchange File Format (Apple)
AIT Advanced Intelligent Tape (Sony)
ALDC Adaptive Lossless Data Compression (IBM)
AMD Advanced Micro Devices Incorporated
AMI American Megatrends Incorporated
AMR Audio/Modem Riser slot (Intel Pentium III 8281x chipsets)
ANI Microsoft Windows ANImated cursor graphic file
ANSI American National Standards Institute
AOL America Online Incorporated
API Application Programming Interface
APIC Advanced Programmable Interrupt Controller
APM Advanced Power Management
ARAG Anti-Reflection Anti-Glare screen treatment (CRT)
ARAS Anti-Reflection Anti-Static screen treatment (CRT)
ARP Address Resolution Protocol
ASC Active Signal Correction technology (Sony CRT)
ASCII American Standard Code for Information Interchange
ASF Advanced Streaming Format (Microsoft NetShow)
ASIC Application Specific Integrated Circuit
ASP (1) Advanced Sound Processor (Creative Labs)
(2)
Application Service Provider
ASPI Advanced SCSI Programming Interface
ASVD Analog Simultaneous Voice and Data
Async SRAM Asynchronous Static Random Access Memory (CPU L2 cache)
AT Advanced Technology (Intel motherboard form factor)
ATA Advanced Technology Attachment (ANSI standard for Integrated Drive Electronics)
ATA-4 Ultra ATA/Ultra DMA 33. 33 MB/second transfer rate (EIDE/ATA hard disk controller/drive standard)
ATA-6 Ultra ATA/Ultra DMA 66. 66 MB/second transfer rate (EIDE/ATA hard disk controller/drive standard)
ATA-8 Ultra ATA/Ultra DMA 100. 100 MB/second transfer rate (EIDE/ATA hard disk controller/drive standard)
ATAPI Advanced Technology Attachment Packet Interface
Athlon AMD Athlon K7 CPU
ATM (1) Adobe Type Manager
(2)
Asynchronous Transfer Mode (network)
ATSC Advanced Television Systems Committee
ATV Advanced TeleVision (i.e. HDTV)
ATX Advanced Technology EXtended (Intel motherboard form factor)
AUTOEXEC.BAT AUTOmatically EXECuted BATch file
AVI Advanced Video Interleave (Microsoft video)
AWR Active Wide Range playback system (Toshiba CD-ROM)
Glossary B
b bit (binary digit): unit of digital information: 1 bit = 0 or 1
B Byte (Binary octet): unit of digital data: 1 Byte =8 bits
BASIC Beginners All purpose Symbolic Instruction Code
BAT file MS-DOS ASCII BATch program file (also the extension used for such files)
Baud (Baud rate) Modem line (carrier) signaling high/low shifts/events per second (data transfer rate)
BBS Bulletin Board System
BDA BIOS Data Area
BEDO Burst Extended Data Out  (when referring to DRAM)
BGA Ball Grid Array (242 pin Intel CPU)
BIF Binary Image Format (file extension)
BIOS Basic Input / Output System
BMP RGB/RLE encoded Microsoft Windows BitMap Picture file (file extension)
Boot days Each successive day you boot the machine. Not related to shutting down / rebooting or restarting in the same day
nor is it related to the first few weeks enlisted in the armed forces. (as used by Brian A. on Feb.23, 2004)
bpp bits per pixel
bps bits per second
Bps Bytes per second
BSB Back Side Bus
BSOD Blue Screen Of Death [Fatal error message, Microsoft Windows most dreaded "feature"] originally Black Screen Of Death in UNIX
bus Binary data gateway between hardware modules: CPU, RAM, I/O etc
Glossary C
CAB CABinet compression format standard (Microsoft)
CAD Computer Aided Design
CADD Computer Aided Design and Drafting
CAS Column Access Strobe
CAV Constant Angular Velocity (Compact Disk)
CCITT Commit?Consultatif International du T??raphe et T??honie (International Telegraph and Telephony Consultative Committee)
CD Compact Disk
CD-DA Compact Disk Digital Audio
CDFS CD-ROM File System (data CD)
CD-I Compact Disc Interactive
CDR CorelDRAW! image file
CDRAM Cache Dynamic Random Access Memory
CD-R Compact Disk Recorder
CD-RAM Compact Disk Rewritable Access Media
CD-ROM Compact Disk Read Only Media
CD-ROM/XA Compact Disk Read Only Media EXtended Architecture (Sony, Philips, Microsoft)
CD-RW Compact Disk ReWritable
CDSL Consumer Digital Subscriber Line modem (Rockwell)
Celeron Intel Pentium II/III/IV Celeron CPU (80686)
CERT Computer Emergency Response Team
CGA Color Graphics Adapter
CGI (1) Computer Generated Image
(2) Common Gateway Interface
CGM Computer Graphics Metafile
CHAP Challenge Handshake Authentication Protocol
CHS Cylinder/Head/Sector (hard drive)
CIAC Computer Incident Advisory Capability team
CIFS Common Internet File System
CISC Complex Instruction Set Computing (CPU)
CL Creative Labs Limited
CLP Microsoft Windows CLiPboard Bitmap file
CLV Constant Linear Velocity (Compact Disk)
CMOS Complementary Metal Oxide Semiconductor manufacturing process
CMOS 7S CMOS 7S manufacturing process (IBM)
CMOS-SOS CMOS Silicon On Sapphire manufacturing process
CMP Chip MultiProcessing (more than 1 CPU per chip)
CMS ColorSync Color Management System (Apple)
CNR Communications/Network Riser slot (Intel Pentium III 8281x chipsets)
COBOL COmmon Business Oriented Language
CODEC Digital video COmpressor and DECompressor (Intel Indeo)
COM (1) Serial COMmunication Port
(2) Component Object Model (Microsoft)
CON
 
CONsole (display)
CONFIG.SYS CONFIGuration SYStem file
cps characters per second
CPU Central Processing Unit (processor)
CRC Cyclical Redundancy Check
CRT Cathode Ray Tube
CS CompuServe
CSLIP Compressed Serial Line Internet Protocol
CSS Cascading Style Sheets HTML specifications (W3C)
CSS1 Cascading Style Sheets mechanism level 1 (W3C)
CSS2 Cascading Style Sheets mechanism level 2 (W3C)
CUR Microsoft Windows static CURsor graphic file
CUT Dr Halo picture file
Glossary D
D3D DirectX 3D APIs (Microsoft Windows 9x/2000/ME/XP)
DAC Digital to Analog Converter
DAT Digital Audio Tape
dB deciBel (10 dB . 1 Bel)
DBS Digital Broadcasting System
DC Direct Current
DCE Data Communications Equipment (modem to modem speed)
DDC Display Data Channel
DD-CD Double Density Compact Disk (Sony): 1.3 GB
DDE Dynamic Data Exchange
DDMA Distributed Direct Memory Access standard
DD-R Double Density Compact Disk Recorder (Sony)
DD-ROM Double Density Compact Disk Read Only Media (Sony)
DD-RW Double Density Compact Disk Rewritable (Sony)
DDR-SDRAM Double Data Rate Synchronous Dynamic Random Access Memory
DDSS Dolby Digital AC-3 5.1 Surround Sound standard (5 + 1 = 6 channels)
DEK Data Encryption Key
DES Data Encryption Standard
DHCP Dynamic Host Configuration Protocol
DHTML Dynamic HyperText Markup Language (W3C)
DIB (1) (1) RGB/RLE encoded Microsoft Windows Device Independent Bitmap
(2) Dual Independent Bus architecture (Intel Pentium Pro and Pentium II/III/IV)
DIG Digital Imaging Group
DIMM Dual In-line Memory Module
DIN Deutsches Institut f? Normung (German Institute for Standards)
DIP Dual In-line Package
DIVX DIgital Video eXpress (discontinued DVD standard)
DLC Data Link Control protocol
DLL Dynamic Link Library
DLP Digital Light Processing technology, also DMD (Texas Instruments)
DLS DownLoadable Sounds standard (PCI MIDI)
DMA Direct Memory Access
DMD Digital Micromirror Device, also DLP (Texas Instruments)
DME Direct Memory Execution (Intel I-740)
DMF Distribution Media Format: high density floppy disk (Microsoft)
DMI Desktop Management Interface
DMTF Desktop Management Task Force
DNA Distributed interNet Applications architecture (Windows 98)
DNS Domain Naming System
DOCSIS ITU J.112 Data Over Cable Service Interface Specification
DOF Depth Of Field (3D video)
DOM Document Object Model standard (W3C)
DOS Disk Operating System
DPI Dots Per Inch
DPLSS Dolby Pro Logic Surround Sound standard (4+1 channels)
DPMA Dynamic Power Management Architecture (Intel PCI/AGP chipsets)
DPMI DOS Protected Mode Interface
DPMS VESA Display Power Management Signaling standard
DRAM Dynamic Random Access Memory
DR-DOS Lineo (Caldera Digital Research) Disk Operating System
Drive-TIP Drive Temperature Indicator Processor (IBM hard drive)
DRP Distribution and Replication Protocol
DRW Micrografx DRaW image file
DS3D DirectSound 3D APIs (Microsoft Windows 9x/2000/ME/XP)
DSC Digital Servo Control (Toshiba CD-ROM)
DS/DD Double-Sided Double-Density (floppy disk standard: 720 KB)
DS/HD Double-Sided High-Density (floppy disk standard: 144 MB)
DSL Digital Subscriber Line modem
DSP (1) Digital Signal Processor
(2) Delivery Service Partner (OEM)
DSS (1) (1) Digital Satellite System
(2) Digital Signature Standard certificate
DSVD Digital Simultaneous Voice and Data
DTD Document Type Definition
DTE Data Terminal Equipment (modem to computer speed)
DTF Distributed Terascale Facility aka high speed TeraGrid network (IBM/Qwest/Intel)
DTP DeskTop Publishing
DTR (1) Data Transfer Rate (throughput)
(2) Data Terminal Ready
DTS Digital Theatre Surround (3D audio)
DTV (1) DeskTop Video
(2) Digital Television
DUN Dial-Up Networking (Microsoft Windows 95/98)
DVD Digital Versatile (Video) Disc
DVD-2 Second generation DVD drive
DVD-A Digital Versatile Disk Audio
DVD-R Digital Versatile Disk Recordable
DVD-RAM Digital Versatile Disk Rewritable Access Media
DVD-ROM Digital Versatile Disk Read Only Media
DVD+RW Digital Versatile Disk ReWritable
DVI Digital Video Interactive (Intel)
DX X86 Intel CPU with FPU (386/DX, 486/DX)
DX3D DirectX 3D APIs (Microsoft Windows 9x/2000/ME/XP)
DXF AutoDesk picture File
DXR2 Dynamic eXtended Resolution 2 technology (Creative Labs DVD)
DXTC S3 Direct3D Texture Compression APIs (S3 Savage3D/2000)
Glossary E
EAX Environmental Audio EXtensions (Creative Labs DirectSound 3D Live! surround sound extensions)
EBDA Extended BIOS Data Area
EBIOS Extended Basic Input/Output System
ECC Error Correction Code
ECHS Enhanced Cylinder/Head/Sector (hard drive > 1024 cylinders)
ECP Extended Capabilities Port
EDC Error Detection Code
EDI Electronic Data Interchange
EDO Extended Data Out (DRAM)
EDRAM Enhanced Dynamic Random Access Memory
EECS Enhanced Elliptical Correction System (Sony CRT)
EEPROM Electrically Erasable Programmable Read Only Memory
EGA Extended Graphics Adapter
EIA Electronics Industries Association
EICA Enhanced Intellight Cooler Architecture
EIDE Enhanced Integrated Device Electronics (hard disk)
EISA Extended Industry Standard Architecture
EISCA Enhanced Intelligent System Cooler Architecture (CPU heatsink)
E-mail Electronic mail
EMB Extended Memory Block
EMBM Environment Mapped Bump Mapping (Matrox G400 3D Video)
EMI ElectroMagnetical Interference
EMM Expanded Memory Manager
EMM386 Microsoft 386 Expanded Memory Manager (EMM386.EXE)
EMS Expanded Memory Specifications
EPA Environmental Protection Agency (US)
EPIC Explicitly Parallel Instruction Computing (Intel/HP)
EPP Enhanced Parallel Port
EPROM Erasable Programmable Read Only Memory
EPS Encapsulated PostScript File
ESCD Extended System Configuration Data (ROM BIOS)
ESD ElectroStatic Discharge
ESDI Enhanced System Device Interface (hard disk)
ESDRAM Enhanced Synchronous Dynamic Random Access Memory
EULA End User License Agreement
EUV Extreme UltraViolet lithography (CPU)
Glossary F
FAST-20 Fast SCSI-3 Parallel Interface standard
FAT File Allocation Table
FAT16 File Allocation Table 16-bit (MS-DOS)
FAT32 File Allocation Table 32-bit (Windows 95/98)
FC-AL Fibre Channel Arbitrated Loop (Ultra Fast SCSI)
FCBs File Control Blocks
FCC Federal Communications Commission (USA)
FC-PGA Flip Chip Pin Grid Array package (Intel Pentium III E CPU)
FC-PH Fibre Channel PHysical and signaling interface (SCSI-3)
FD Floppy Disk
FDC Floppy Drive Controller
FDD Floppy Disk Drive
FDDI Fiber Distributed Data Interface
FED Field Emission Display
FERAM FerroElectric Dynamic Random Access Memory (Infineon / Toshiba)
FIFO First In First Out
FMD-ROM Fluorescent Multilayer Disc Read Only Media (Constellation 3D 140 GB CD-ROM technology)
FMV Full Motion Video
FPD Flat Panel Display
FPE File Protection Error
FPM Fast Page Mode (DRAM)
fps frames per second
FPTV Front Projection TeleVision
FPU Floating Point Unit (coprocessor)
FRAM Ferroelectric Random Access Memory
Frame-buffer 1st + 2nd dimensions / height + width / x + y axes memory (2D video)
FSAA Full Screen Anti-Aliasing edge smoothing (3D video)
FSB Front Side Bus (motherboard CPU to I/O bus)
FTP File Transfer Protocol
Full-Duplex Two way modem communication protocol (echo-plex)
FXT1 Advanced Texture Compression technology (3Dfx)
Glossary G
GB GigaByte (1 GB = 1,024 MegaBytes = 1,048,576 KiloBytes)
GBps GigaBytes per second
gbps gigabits per second
GDI Graphics Device Interface (Microsoft Windows)
GEM Ventura/GEM image file
GIF Graphics Interchange Format (CompuServe)
Glide 3Dfx Voodoo family proprietary 3D APIs
G.Lite ITU G.992.2 1.4 Mbps Digital Subscriber Line modem standard (ADSL)
GM General MIDI standard
GPF General Protection Fault (Microsoft Windows)
GMR Giant MagnetoResistive effect (IBM hard drive)
GPU Graphics Processing Unit (NVidia GeForce / GeForce2 2D / 3D)
GTS Giga Texel Shader (NVidia GeForce2 GTS 2D / 3D)
GUI Graphical User Interface
GVIF Gigabit Video InterFace (Sony LCD)
Glossary H
HAL Hardware Abstraction Layer (Microsoft Direct3D virtual 3D video accelerator interface APIs)
Half-Duplex One way modem communication protocol (simplex or local-echo)
HAVi Home Audio Video interoperability (entertainment APIs)
HD Hard Disk
HDA High reliability Hard Disk Assembly
HDC Hard Drive Controller
HDD Hard Disk Drive
HD-DVD High Definition Digital Versatile Disk
HD-ROM High Definition Read Only Media (Norsam Technology)
HDSL High bit rate Digital Subscriber Line modem
HDSS Holographic Data Storage System (IBM)
HDTV High Definition Television (new digital TV standard: 1200 lines)
HDVD High Definition Digital Video Disc (Sonic / Ravisent)
HDVP High Definition Video Processor (NVidia GeForce2 GTS)
HEL Hardware Emulation Layer (Microsoft Direct3D virtual 3D video rasterization device)
HFC Hybrid Fiber Coaxial cable system
HFS Hierarchical File System (CD-ROM, MacOS)
HGL Hewlett Packard Graphics Language image file
HID Human Interface Devices
HiFD High density 2.8 MB Floppy Drive standard (Sony/Fuji)
Hi-Fi High Fidelity (audio / video)
HIMEM Microsoft HIgh / Extended MEMory Manager (HIMEM.SYS)
HIPPI HIgh Performance Parallel Interface (ANSI X3T9.3 standard)
HMA High Memory Area
HP Hewlett Packard Corporation
HPC Handheld Personal Computer
HPFS High Performance File System (OS/2)
HSDRAM High Speed Synchronous Dynamic Random Access Memory
HSR Hidden Surface Removal 3D polygon rendering (NVidia NV20 + 3dfx Voodoo5 / 6)
HTML HyperText Markup Language (defined by W3C)
HTTP HyperText Transfer Protocol
HVD High Voltage Differential standard (SCSI-2)
HyperTransport I/O bus architecturC: 64-bit, 133 / 266 MHz, 6.4 GB / sec (AMD)
Hz Hertz (clock speed): 1 Hz = 1 clock cycle
Glossary I
IA-32 Intel Architecture 32-bit (32-bit CPU)
IA-64 Intel Architecture 64-bit (high-end 64-bit CPU)
IBM International Business Machines Corporation
IC Interface Controller
ICD Installable Client Driver (Microsoft 3D)
ICMP Internet Control Message Protocol
ICMPv6 Internet Control Message Protocol version 6
ICO ICOn graphic file (Microsoft Windows file type)
ICS Internet Connection Sharing
IDCT Inverse Discrete Cosine Transform (DVD decoding)
IDE Integrated Device (Drive) Electronics (hard disk)
IE Microsoft Internet Explorer
IEEE Institute of Electrical and Electronics Engineers
IEEE 1394 Institute of Electrical and Electronics Engineers FireWire peripheral devices high performance serial bus standard
IETF Internet Engineering Task Force
IFF Electronic Arts Image File
IFSHLP.SYS Installable File System HeLPer device driver (Microsoft Windows)
IGMP Internet Group Management Protocol
IMA Interactive Music Architecture (Microsoft)
IMAP Internet Mail Access Protocol
IMAP4 Internet Mail Access Protocol level 4
IMG GEM Paint image file
InterNIC Internet Network Information Center
I/O Input/Output
ION Integrated On-demand Network (Sprint FastBreak)
IP Internet Protocol
IPF Invalid Page Fault (Microsoft Windows)
IPv4 Internet Protocol version 4 (32-bit)
IPv6 Internet Protocol version 6 (128-bit)
IPX Internetwork Packet EXchange (Novell Netware)
IRC Internet Relay Chat
IrDA Infrared Data Association
IRQ Interrupt ReQuest line
ISA Industry Standard Architecture
ISDN Integrated Services Digital Network
ISO International Organization for Standardization
ISO 9660 International Standard LOgical CD-ROM format (High Sierra)
ISP Internet Service Provider
ITU International Telecommunications Union
Glossary J
JAR Java Archive file
Java Sun Microsystems programming language
JavaScript Programming language (not related to Java above)
JDK Java Developers Kit
JEDEC Joint Electronic Device Engineering Council
JFC Java Foundation Classes
JIF Joint Photographers Expert Group Image file
JPEG Joint Photographers Expert Group Picture standard
JPG Joint Photographers Expert Group Picture file
JVM Java Virtual Machine
Glossary K
K56flex Lucent/Rockwell 56 kbps analog modem transfer standard
K5 AMD Processor series
K6 AMD Processor series
KB KiloByte (1 KB = 1,024 Bytes)
KBps KiloBytes per second
kbps kilobits per second
KNI Intel Katmai / Coppermine CPU New 70 MMX extensions
Glossary L
L1 Level 1 cache (on CPU)
L2 Level 2 cache (off CPU)
L2TP Layer 2 Tunneling Protocol
L3 Level 3 cache (off CPU SMP)
LAN Local Area Network
LAPM Link Access Protocol for Modems
LBA Logical Block Addressing (hard disk access)
LBM DeLuxe Paint BitMap picture file
LCD Liquid Crystal Display
LDAP Lightweight Directory Access Protocol
LDIF Lightweight Data Interchange Format (e-mail)
LED Light Emitting Diode
LEP Light Emitting Polymers technology (CDT monitor)
LFB Linear Frame Buffer (2D video)
LFN Long File Name (256.8 = Win32 32-bit)
LFO Low Frequency Oscillator
LH LoadHigh
LIM Lotus/Intel/Microsoft expanded / extended memory specifications
LIMAD LInear MAgnetic Drive speaker technology (Soundmatters)
LMDS Local Multipoint Distribution Service
LPC Low Pin Count interface specification (Intel)
LPT Line Printer
LTO Linear Tape-Open technology (IBM, HP, Seagate)
LVD Low Voltage Differential (SCSI-2)
Glossary M
MAC (1) MAC Paint picture file
(2) Apple MACintosh computer
MAPI Messaging Application Program Interface
MB MegaByte (1 MB = 1,024 KiloBytes = 1,048,576 bytes)
MBps MegaBytes per second
mbps megabits per second
MBR Master Boot Record (partition table)
MCA Multilink Channel Aggregation technology (introduced in Microsoft Windows 98)
MCD Mini Client Driver (Microsoft 3D)
MCGA MonoChrome Graphics Adapter
MCI Media Control Interface
MDA Modular Digital Architecture
MDI Multiple Document Interface
MDRAM Multibank Dynamic Random Access Memory (MoSys)
MFC Microsoft Foundation Classes (C++ classes library)
MGA Monochrome Graphics Adapter
MHz MegaHertz (1 MHz = 1,000 KHz = 1,000,000 Hz)
MIDI Musical Instrument Digital Interface
MIME Multipurpose Internet Mail Extensions
MIP Multum In Parvum texture mapping
MIPS Millions of Instructions per Second
MLA Modern Languages Association
MLPPP MultiLink Point to Point Protocol
ML-R MultiLevel Compact Disk Recorder 2 GB (TDK)
ML-RW MultiLevel Compact Disk ReWritable 2 GB (TDK)
MMA MIDI Manufacturer's Association
MMVF MultiMedia Video Format (NEC DVD)
MMX Intel Pentium/Pentium Pro CPU MultiMedia eXtensions
MMX2 Intel Pentium II CPU MultiMedia eXtensions 2nd generation
MO MagnetoOptical
Modem Modulator / Demodulator (digital to analog converter/ transmitter/ receiver)
MOV QuickTime MOVie file (Apple)
MP3 MPEG-1 Audio Layer 3 compression/format standard
MPC Multimedia Personal Computer
MPEG Motion Picture Expert Group
MPEG-1 Motion Picture Expert Group 1 video compression standard
MPEG-2 Motion Picture Expert Group 2 video compression standard
MPG Motion Picture Expert Group compressed image file standard
MPGA Micro Pin Grid Array (370 pin Intel CPU)
MR Magneto-Resistive head technology (HDD)
MRAM Magnetic Random Access Memory (IBM)
MRX Magneto-Resistive Extended head technology (IBM HDD)
µs Microsecond (1/1,000,000 = 1 millionth of a second)
MS Microsoft Corporation
M$ Microsoft Corporation (slang)
MS-DOS Microsoft Disk Operating System
MSCDEX Microsoft Compact Disc Extensions device driver (MSCDEX.EXE)
MSD Microsoft Diagnostics (MSD.EXE)
MSKB Microsoft Knowledge Base
MSP Microsoft Paint picture file
MSRP Manufacturer Suggested Retail Price
MSS Maximum Segment Size (Internet protocol)
MTBF Mean Time Between Failures
MTT Multi-transaction Timer (PCI)
MTU Maximum Transmission Unit (Internet protocol)
MUD Multi-User Domain
MVA Multi-domain Vertical Alignment technology (LCD screen)
Glossary N
NC Network Computer
NDIS Network Driver Interface Specification layer
NetRoom Helix Software 386 Expanded Memory Manager (RM386.EXE)
NFS Network File System
NGI Next Generation Internet foundation
NIC (1) Network Interface Card
NIC (2) Networked Information Center
NIST National Institute of Standards and Technology
NLP Natural Language Processing
NNTP Network News Transfer Protocol
NOS Network Operating System
ns Nanosecond (1/1,000,000,000 = 1 billionth of a second)
NSR NVidia Shading Rasterizer (GeForce2 GTS chipset)
NTFS Windows NT File System standard (32-bit)
NTSC National Television Systems Committee (USA TV standard: 525 lines)
NVRAM Non Volatile Random Access Memory
Glossary O
OAW Optically Assisted Winchester technology (Seagate hard drive)
OCR Optical Character Recognition
ODBC Open DataBase Connectivity
OEM Original Equipment Manufacturer
OGL OpenGL (see below)
OLE Object Linking and Embedding
OLED Polymer Organic Light Emitting Display (Toshiba)
OLGA Organic Land Grid Array (Intel Pentium III CPU)
OOB Out Of Band
OpenGL Silicon Graphics Open standard Graphical Language (32-bit 3D graphics architecture layout)
OpenGVS Open Gemini Visual System 3D APIs standard
OPS Open Profiling Standard
OS Operating System
OS/2 IBM Operating System/2
OSD Open Software Distribution
OSR1 OEM Service Release 1 (Microsoft Windows 95 version 4.00.950 a: 1st release, upgraded with SP1. Retail and OEM
OSR2 OEM Service Release 2 (Microsoft Windows 95 version 4.00.950 B/C: 2nd release). OEM only
Glossary P
P I (P1) Intel Pentium I CPU
P II (P2) Intel Pentium II CPU (80686 Klamath / Deschutes / Xeon and Celeron)
P III (P3) Intel Pentium III CPU (80686 Katmai / Coppermine / Tualatin / Xeon and Celeron)
P IV (P4) Intel Pentium IV CPU (80686 Willamette / Northwood / Xeon and Celeron)
P3P Platform for Privacy Preferences (W3C standard)
P5 Intel Pentium/Pentium Pro CPU (80586)
P6 Intel Pentium II/III/IV CPU (80686)
PAL Phase Alternate Line (European TV standard: 625 lines)
PAP Password Authentication Protocol
PBC Pipeline Burst Cache
PBM Portable BitMap UNIX picture file
PBSRAM Pipeline Burst Static Random Access Memory (CPU L2 cache)
PC Personal Computer
PC99 Intel/Microsoft PC 1999 System Design Guide
PCB Printed Circuit Board
PCD Kodak Photo CD image file
PCI Peripheral Component Interconnect bus architecturC: 32-bit, 33/66 MHz (Intel)
PCI 2.1 Peripheral Component Interconnect 2.1 standard: 32-bit, 33/66 MHz (Intel)
PCI 2.2 Peripheral Component Interconnect 2.2 standard: 32-bit, 33/66/133 MHz (Intel)
PCI-X Peripheral Component Interconnect eXtended bus architecturC: 64-bit,133 MHz (Intel/Compaq/HP/IBM)
PCI 3.0 Peripheral Component Interconnect 3.0 standard (3GIO): 64-bit,133 / 266 MHz, 6.6 GB/sec (Intel / IBM / Compaq / Microsoft / Dell)
PCL Printer Control Language
PCM Pulse Code Modulation
PCMCIA Personal Computer Memory Card International Association
PCS Personal Communications Service
PCX Zsoft PC Paintbrush Picture file
PDA Personal Digital Assistant
PDF Portable Document Format file (Adobe Acrobat)
PDP Parallel Data Processing (Intel I-740)
pel Picture ELement: RGB 3 dot pattern (color TV). Also pixel
Pentium Intel Pentium CPU (80586)
Pentium Pro Intel Pentium Pro CPU (80586)
Pentium II (P2) Intel Pentium II CPU (80686 Klamath / Deschutes / Xeon and Celeron)
Pentium III (P3) Intel Pentium III CPU (80686 Katmai / Coppermine / Xeon and Celeron)
Pentium IV P(4) Intel Pentium IV CPU (80686 Willamette / Northwood / Xeon and Celeron)
PERL Practical Extraction and Report Language
PFPT Pure Flat Picture Tube
PGM Portable GrayMap UNIX picture file
PIC (1) Programmable Interrupt Controller
(2) Lotus PICtor/PC Paint picture file
PIF Program Information File (Microsoft Windows)
PIM Personal Information Manager
PING Packet InterNet Groper
PIO Programmed Input / Output
pixel PIcture ELement: RGB 3 dot pattern (color CRT) Also pel
PLEDM Phase-state Low Electron Drive Memory (Hitachi)
PLGA Plastic Land Grid Array (Intel Pentium II CPU)
PLL Phase Locked Loop (CPU clock multiplier chip)
PMTU Path Maximum Transmission Unit (Internet protocol)
PNG Portable Network Graphics file
PnP Plug and Play standard
PoP Point of Presence
POP Post Office Protocol
POP3 Post Office Protocol 3 standard
POST Power On Self Test (BIOS) these are the beeps at system startup
POTS Plain Old Telephone Service
PPGA Plastic Pin Grid Array (370 pin Intel CPU)
PPI Precise Pixel Interpolation (Intel I-740)
PPM Portable Pixel Map UNIX picture file
PPP Point to Point Protocol
PPTP Point to Point Tunneling Protocol
PRI Primary Rate Interface
PRML Partial Response Maximum Likelihood (hard drive)
PRN Printer port
PS/2 IBM Personal System/2
PSD RGB/indexed PhotoShop image file (Aldus)
PSTN Public Switched Telephone Network
PVR Personal Video Recorder (TV to digital)
Glossary Q
QBE Query By Example
QDR-SDRAM Quad Data Rate Synchronous Dynamic Random Access Memory
QEMM Quarterdeck 386 Expanded Memory Manager (QEMM386.SYS)
QOS Quality Of Service
Glossary R
RAID Redundant Array of Inexpensive (Independent) Disks
RAM Random Access Memory
RAMDAC Random Access Memory Digital to Analog Converter
RARP Reverse Address Resolution Protocol
RAS (1) Sun Microsystems Raster image file
(2) Row Access Strobe
(3) Remote Access Service (Microsoft Windows NT/ 2000/ XP)
RAVE Rendering Acceleration Virtual Engine (Apple)
RAW Unencoded pixel data image file
RDF Resource Description Framework (Netscape Aurora)
RDRAM Rambus Dynamic Random Access Memory
REG REGistry text/ASCII file (Microsoft Windows 9x/ NT/ 2000/ ME/ XP)
Registry Microsoft Windows 9x/NT/2000/ME/XP Registry database
RegEdit Microsoft Windows 9x/NT/2000/ME/XP Registry Editor (REGEDITEXE)
RegEdt32 Microsoft Windows NT/2000/XP Registry Editor (REGEDT32EXE)
RFC Request for Comments
RFI Radio Frequency Interference
RGB Red Green Blue picture encoding
RIMM Rambus Inline Memory Module
RISC Reduced Instruction Set Computing (CPU)
RIVA Real Time Interactive Video and Animation (NVidia 3D)
RLE CompuServe/Microsoft Windows Run Length Encoded graphic file
RM386 Helix Software 386 Expanded Memory Manager (RM386EXE)
ROM Read Only Memory
RPC Remote Procedure Calls
rpm Revolutions Per Minute
RPTV Rear Projection TeleVision
RSA Public Key Encryption algorithms (RSA Data Security)
RTC Real Time Clock (BIOS)
RTF Rich Text Format (Microsoft Word)
RWIN Receive WINdow (Internet protocol)
Glossary S
S3TC S3 Texture Compression architecture (S3 Savage3D / 2000)
SACD Super Audio Compact Disc (Sony / Philips)
SBK EMU Sound Font BanK v1.0 (Creative Labs SB sound cards)
SCSI Small Computers System Interface standard
SCSI-1 Small Computers System Interface 1 specifications
SCSI-2 Small Computers System Interface 2 specifications
SCSI-3 Small Computers System Interface 3 specifications
SDDS Sony Dynamic Digital Sound (8 channel theatre surround sound standard)
SDK Software Developers Kit
SDRAM Synchronous Dynamic Random Access Memory
SDS Satellite Data Service
SDSL Symmetrical Digital Subscriber Line modem
SDX Storage Data Acceleration (Western Digital)
SECAM Sequential Couleur Avec M?oire (French TV standard: 819 lines)
SECC Single Edge Contact Cartridge (Intel Pentium II CPU)
SECC2 Single Edge Contact Cartridge 2 (Intel Pentium III CPU)
SEL Software Emulation Layer (Microsoft Direct3D)
SEPP Single Edge Processor Package (Intel Celeron CPU)
Serial ATA Ultra Serial ATA 1500 v1.0 Hard Disk Interface standard (15 Gb/sec)
SET Secure Electronic Transaction standard
SF2 EMU Sound Font Bank v2.0 (Creative Labs SB sound cards)
SFN Short File Name (8.3 . MS-DOS 16-bit)
SFP System File Protection (Windows ME / 2K / XP)
SGI Silicon Graphics Incorporated
SGML Standard Generalized Markup Language (W3C)
SGRAM Synchronous Graphics Random Access Memory
SHDSL Single pair High bit rate Digital Subscriber Line modem
SIMD Single Instruction Multiple Data (Intel Pentium MMX)
SIMM Single In-line Memory Module
SLC Subscriber Line Charge
SLDRAM Synchronous Link Dynamic Random Access Memory (Hyundai)
SL-DRAM Synchronous Layout Dynamic Random Access Memory (Siemens/Micron)
SLI Scan Line Interleave technology (3Dfx Voodoo2)
SLIP Serial Line Internet Protocol
SLM Spatial Light Modulator
SMART Self Monitoring Analysis Reporting Technology standard
SMIL Synchronized Multimedia Integration Language (W3C)
SMP Symmetrical MultiProcessing standard
SMPTE Society of Motion Picture and Television Engineers
SMTP Simple Mail Transfer Protocol
S/NR Signal to Noise Ratio
SO-DIMM Small Outline Dual Inline Memory Module connector
SPD Serial Presence Detection (EEPROM)
S/PDIF Sony/Philips Digital Interchange Format
SPI-2 SCSI Parallel Interface 2 standard (SCSI-3)
SPI-3 SCSI Parallel Interface 3 standard (SCSI-3)
SPP Standard Parallel Port
SQL Structured Query Language
SRAM Static Random Access Memory
sRGB 32-bit standard Red Green Blue color encoding (Microsoft / Hewlett Packard)
sRGB64 64-bit standard Red Green Blue double-precision color encoding (Microsoft/Hewlett Packard)
SSA Serial Storage Architecture bus/interface
SSE Streaming SIMD Extensions (Intel Pentium III)
SSE2 Streaming SIMD Extensions version 2 (Intel Pentium IV)
SSL Secure Sockets Layer
SSR Super Scalar Rendering (3D video)
STA SCSI Trade Association
STD/VR Standard Voltage Regulator (CPU)
STM Scanning Tunneling Microscope
SVGA Super Video Graphics Array standard
SX X86 Intel CPU without FPU (386/SX, 486/SX)
Sync SRAM Synchronous burst Static Random Access Memory (CPU L2 cache)
Glossary T
TAPI Telephony Application Programming Interface
TB TeraByte (1 TB = 1,024 GigaBytes = 1,048,576 MegaBytes)
T-Buffer Multiple Frame Buffer rendering engine (3Dfx 3D video)
TCL Transform, Clipping & Lighting (ATI 3D video)
TCO Total Cost of Ownership
TCP Transmission Control Protocol
TCP/IP Transmission Control Protocol/Internet Protocol
TEC ThermoElectric Cooler (Peltier effect)
Texel Bilinear TEXtured pixEL (3D video)
TFT Thin Film Transistor (active matrix display)
TFTP Trivial File Transfer Protocol
TGA True-Vision Graphic file (Targa)
THD Total Harmonic Distortion
THX Lucas Film Home/Cinema Theatre Hi-Fi Dolby Digital Surround audio / video standard (RC: George Lucas' first moviC: "THX 1138")
TIFF Tagged Image File Format (Aldus)
T&L Transform & Lighting (3D video)
TMM Terabit Molecular Memory technology (Toshiba DVD)
TNT TwiN Texel processing engine (NVidia RIVA TNT 2D/3D)
TNT2 TwiN Texel 2 processing engine (NVidia RIVA TNT2 2D/3D)
TPU Texture Processing Unit (3Dfx Voodoo / Voodoo2 / Voodoo3)
TSR Terminate and Stay Resident program/device/driver
TTF True Type Font
TTL Time To Live (Internet protocol)
TWI True Web Integration (Microsoft)
Glossary U
UAE Unrecoverable (fatal) Application Error
UART Universal Asynchronous Receiver Transmitter
U-ATA Ultra Advanced Technology Attachment (EIDE / ATA disk controller / drive)
UCE Unsolicited Commercial Email
UDF Universal Disk Format (Compact Disk)
UDMA Ultra Direct Memory Access (EIDE/ATA disk controller/drive)
UDMA/33 Ultra DMA / Ultra ATA 33 = 33 MB/second transfer rate (EIDE / ATA hard disk controller / drive standard)
UDMA/66 Ultra DMA / Ultra ATA 66 = 66 MB/second transfer rate (EIDE / ATA hard disk controller / drive standard)
UDMA/100 Ultra DMA / Ultra ATA 100 = 100 MB/second transfer rate (EIDE / ATA hard disk controller / drive standard)
UDP User Datagram Protocol
UDSP Uni-processor Digital Signal Processor Drive Electronics based architecture
UHF Ultra High Frequency
Ultra160/m SCSI Ultra3 SCSI standard (160 MB/s burst transfer rate)
Ultra2b SCSI Ultra2 SCSI standard (80 MB/s burst transfer rate)
Ultra DMA Ultra Direct Memory Access (EIDE drive controller)
Ultra SCSI Ultra1 SCSI standard (40 MB/s burst transfer rate)
UMA Upper Memory Area
UMB Upper Memory Block
UMR Upper Memory Region
UNC Uniform Naming Convention
UNIX Multi-User Network Operating System
UPnP Universal Plug and Play
UPS Uninterruptible Power Supply
URI Uniform Resource Identifier
URL Uniform Resource Locator
URM Universal Retention Mechanism (Slot 1 CPU)
USB Universal Serial Bus standard
USB2 Universal Serial Bus version 20 standard
USENET User Network (public access newsgroups)
USR U S Robotics (3Com modem brand)
UUE Uniform Resource Locator UNIX Encoded
UUENCODE Unix to Unix Encoding
Glossary V
V.90 ITU PCM 56 Kbps analog modem transfer standard
V.92 ITU PCM 56 Kbps analog modem transfer standard
VAR Value Added Reseller
VAT Virtual Allocation Table (Compact Disk)
VBE VESA BIOS Extensions
VBI Vertical Blanking Interval
VCM Virtual Channel Memory
VCP Video Cassette Player
VCPI Virtual Control Program Interface
VCR Video Cassette Recorder
VDSL Variable Digital Subscriber Line modem
VESA Video Electronics Standards Association
VFAT Virtual File Allocation Table (Microsoft Windows)
VFIR Very Fast InfraRed protocol (Hewlett Packard)
VfW Video for Windows
VGA Video Graphics Array standard
VHD Very High Density connector standard (Centronics)
VHF Very High Frequency
VIS Visual Image Size
VLB VESA Local Bus (VL bus)
VLM Very Large Memory addressing (Intel Merced)
VLSI Very Large Scale Integration
VMM (1) Virtual Machine Monitor
(2) Virtual Memory Manager
VoIP Voice over Internet protocol
VPN Virtual Private Network
VR (1) Virtual Reality
(2) Voltage Regulator (as used on a CPU)
VRE Voltage Regulator Enhanced (MMX / SSE / KNI / 3DNow! CPU dual voltage)
VRAM Video Random Access Memory
VRM Voltage Regulator Module
VRML Virtual Reality Modeling Language
VSA-100 Voodoo Scalable Architecture (3Dfx Napalm 3D chipset)
VSM Virtual Storage Management (Microsoft Windows)
VXD Virtual eXtended (everything) device Driver (Microsoft Windows)
Glossary W
W3C World Wide Web Consortium
WAIS Wide Area Information Server
WAN Wide Area Network
WAR Wide Aspect Ratio display
WBEM Web Based Enterprise Management Initiative
WDM Win32 Driver Model
WfM Wired for Management
WfWG Microsoft Windows for WorkGroups 31x
WHQL Windows Hardware Quality Labs (Microsoft approved drivers)
Win16 Microsoft Windows 3xx 16-bit OS
Win2000 Microsoft Windows 2000 (formerly NT 50)
Win2K Microsoft Windows 2K (2000)
Win31 Microsoft Windows 3.1x
Win32 Microsoft Windows 32-bit OS
Win32s Microsoft Windows 32-bit extensions for Windows / WfWG 31x 16-bit
Win95 Microsoft Windows 95
Win98 Microsoft Windows 98 first edition
Win98 Gold Microsoft Windows 98 first edition
Win98SE Microsoft Windows 98 second edition
WinME Microsoft Windows ME (Millennium Edition)
WinNT Microsoft Windows NT 3.xx / 40 (New Technology)
WinXP Microsoft Windows XP (eXPerience)
WinNET Microsoft Windows .Net Server
WMF Microsoft Windows MetaFile
WORM (1)
(2)Write Once Read Many (CD-R)
WOSA Windows Open Services Architecture (Microsoft)
WOSSA Windows Operating Systems and Services Architecture (Microsoft)
WPE Windows Protection Error (Microsoft Windows)
WPG WordPerfect Graphic file
WRAM Windows Random Access Memory
WTX Workstation Advanced Technology EXtended (Intel motherboard form factor)
WWIF World Wide InterFace
WWW World Wide Web
WYSIWYG What You See Is What You Get
Glossary X
x2 3Com/US Robotics 56 kbps analog modem transfer standard
X86 Intel X86 CPU (family compatible)
X87 Intel X87 FPU (family compatible)
Xeon Intel Pentium II / III / IV Xeon CPU (80686)
XHTML Extensible Hypertext Markup Language (W3C standard)
XLL Extensible Link Language (W3C standard)
XML Extensible Markup Language (W3C standard)
XMM Extended Memory Manager
XMS Extended Memory Specifications
XSL Extensible Style Language (W3C)
XT Extended Technology (Intel motherboard form factor)
XVGA EXtended Video Graphics Array
Glossary Y
Y2K Year 2000
Glossary Z
ZAK Zero Administration Kit for Windows NT workstations
ZAW Zero Administration initiative for Windows
Z-buffer Third (3rd) dimension / depth / z axis memory (3D video)
ZIF Zero Insertion Force (CPU socket)
A
AMOF as a matter of fact
ADN any day now
AFAIC as far as I'm concerned
AFAICS as far as I can see
AFAICT as far as I can tell
AFAIK as far as I know
AFAIR as far as I remember
AFK away from keyboard
AISB as I said before
AISI as I see it
AIUI as I understand it
AKA also known as
ANFAWFOS and now for a word from our sponsor
ANFSCD And now for something completely different...
ASAP as soon as possible
ATLA another three letter acronym
AWGTHTGTATA Are we going to have to go through all this again?
AWGTHTGTTA Are we going to have to go through this again?
AYOR at your own risk
B
BAK back at keyboard
BBL be back later
BBS be back soon
BCNU be seeing you
BF boyfriend
BFN bye for now
BOT back on topic
BRB be right back
BSF but seriously folks
BST but seriously though
BTAIM be that as it may
BTDT been there done that
BTHOM Beats the hell outta me!
BTSOOM Beats the shit out of me!
BTW by the way
BTWBO Be there with bells on.
C - E
CMIIW Correct me if I'm wrong.
COTFLGOHAHA Crawling on the floor laughing guts out and having a heart attack
CU See you.
CUA commonly used acronym
CUL See you later.
CUL8R See you later.
CWYL Chat with you later.
CYA Cover your ass.
D&C Duck and cover
DILLIGAD Do I look like I give a darn?!
DILLIGAF Do I look like I give a f***!
DNPM darn near pissed myself
DUCWIC Do you see what I see?
DWISNWID Do what I say not what I do
DYHWIH Do you hear what I hear?
DYJHIW Don't you just hate it when...
E2EG ear to ear grin
EOD end of discussion
EOF end of file
EOS end of show
ESAD Eat shit and die!
ESAL Eat shit and live!
ETLA extended three letter acronym
F
FAAK falling asleep at keyboard
FAFWOA for a friend without access (Blush-blush really dumb question coming up)
FIFO first in first out
FITB Fill in the blank.
FOAD F*** off and die.
FOAF friend of a friend
FOAFOAG father of a friend of a girlfriend
FOAG father of a girlfriend
FOC free of charge
FTASB faster than a speeding bullet
FTL faster than light
FU f***ed up
FUBAR f***ed up beyond all repair
FUBB fouled up beyond belief
FUD (spreading) fear, uncertainty, and disinformation
FWIW for what it's worth
FYA For your amusement
FYE For your entertainment
FYI for your information
G - H
GA go ahead
GAFIA get away from it all
GAL get a life
GF girlfriend
GFAK go fly a kite
GGN gotta go now
GIGO garbage in, garbage out
GIWIST Gee, I wish I'd said that.
GR&D grinning, running & ducking
GMTA great minds think alike
GTFOOMF Get the f*** out of my face.
HAK hugs and kisses
HAND have a nice day
HLOL hysterically laughing out loud
HLOLARAWCHAWMP hysterically laughing out loud and rolling around while clapping hands and wetting my pants
HOMPR Hang on, mobile phone's ringing.
HTH hope this helps
HWS(PEST) husband wants sex (please excuse slow typing)
I
IAC in any case
IAE in any event
IANAL I am not a lawyer (also IANAxxx, such as IANACPA)
IANALBIPOOTV I am not a lawyer, but I play one on TV
IARTPFWTSIOWIM I am repeating this parrot-fashion with out the slightest idea of what it means
IBC inadequate, but cute
IBTD I beg to differ.
IDGAD I don't give a damn.
IDGAS I don't give a shit.
IDK I don't know
IRL in real life
IIRC If I recall correctly
IITYWIMWYBMAD If I tell you what it means will you buy me a drink?
IITYWTMWYKM If I tell you what this means will you kiss me?
IIWM if it were me (mine)
ILIWTPCT I love it when the plan comes together
ILSHIBAMF I laughed so hard I broke all my furniture!
ILSHIBATF I laughed so hard I broke all the furniture.
IMBO in my biased opinion
IMCAO in my completely arrogant opinion (Use for attracting flames!)
IMCO in my considered opinion
IME in my experience
IMHO in my humble opinion
IMNSHO in my not so humble opinion
IMO in my opinion
INPO in no particular order
IOW in other words
ISTM it seems to me
ISTR I seem to recall
ITA I totally agree
IYSWIM If You see what I mean.
J - L
JAM Just a minute.
KISS keep it simple, stupid
LIFO last in first out
LLTA Lots and lots of thunderous applause!
LMFAO Laughing my f***ing ass off.
LOL lots of luck or laughing out loud
LSHMSH laughing so hard my side hurts
LTIP laughing till I puke
M - N
MFG more friendly garbage
MFTL my favorite toy language
MHOTY my hat's off to you
MMIF my mouth is full
MTFBWY May the force be with you!
MYOB Mind your own business!
NALOPKT Not a lot of people know that.
NBD no big deal
NFI no f***ing' idea
NFW no f***ing way
NIMBY not in my back yard
NRN no reply necessary
NTL nevertheless
NTTAWWT not that there's anything wrong with that
O - P
OAO over and out
OATUS on a totally unrelated subject
OAUS on an unrelated subject
OBTW oh, by the way
OIC Oh, I see!
ONNA Oh no, not again!
ONNTA Oh no, not this again!
OOTB out of the box (brand new)
OOTC obligatory on-topic comment
OTC Over the counter
OTOH on the other hand
OTOOH on the other other hand
OTT over the top
OTTH on the third hand
OTTOMH off the top of my head
OTTOMHAROOB off the top of my head and rolling out of bounds
OTW on the whole
OWTTE or words to that effect
PD public domain
PITA pain in the ass
PMFJI pardon me for jumping in
PMIGBOM Put mind in gear, before opening mouth!
PMYMHMMFSWGAD Pardon me, you must have mistaken me for some one who gives a damn
POV point of view
R
RAEBNC Read and enjoyed, but no comment.
ROTBA reality on the blink again
ROTFFNAR rolling on the floor for no apparent reason
ROTFL rolling on the floor rolling on the floor laughing (also, ROFL)
ROTFLAHMS rolling on the floor laughing and holding my sides
ROTFLASTC rolling on the floor laughing and scaring the cat
ROTFLBTC rolling on the floor laughing and biting the carpet
ROTFLGO rolling on the floor laughing guts out
ROTFLMAO rolling on the floor laughing my ass off
ROTFLOL rolling on the floor laughing out loud
ROTFLOLVH rolling on the floor laughing out loud very hard
ROTFTPOF rolling on the floor laughing trying to put out flames
ROTFLSTC rolling on the floor laughing scaring the cat
ROTFWTIME rolling on the floor with tears in my eyes
RSN real soon now (which may be a long time coming)
RTFAQ read the FAQ
RTFI read the f***ing instructions
RTFM read the f***ing manual
RTFMA read the f***ing manual, again
RTFMS Read the f***ing manual, sir! (from the military)
RUOK Are You OK?
S - T
SBCN Sitting behind the computer naked.
SCNR Sorry, couldn`t resist
SHM Shit happens, mate.
SICS sitting in chair snickering
SIMCA sitting in my chair amused (for something not quite as funny as to deserve ROTFL)
SITD still in the dark
SMOP small matter of programming
SNAFU situation normal, all f***ed up
SNR signal to noise ratio
SO significant other
SOI stuck on ice
TAFN that's all for now
TANJ there ain't no justice
TANSTAAFL there ain't no such thing as a free lunch
TARFU things are really fouled up
TGAL think globally, act locally
TIA thanks in advance
TIC tongue in cheek
TINALO this is not a legal opinion
TINAR this is not a recommendation
TINWIS that is not what I said
TLA three-letter acronym (such as this)
TMTOWTDI there's more than one way to do it
TNOTVS there's nothing on TV so,....
TNX thanks
TPS(S) this program sucks (severely)
TPTB the powers that be
TRDMC tears running down my cheeks
TSOHF total sense of humor failure
TTBOMK to the best of my knowledge
TTFN ta ta for now
TTYL talk to you later
TTYRS talk to you real soon
TUFD the user file died
TVM thanks very much
TYCLO Turn your CAPS LOCK off. (Quit shouting.)
TYVM thank you very much
U - Y
UBD user brain damage
UPGS unfinished project guilt syndrome
UTC under the counter
UTT under the table
VETLA very enhanced TLA
VR virtual reality
WAB? What another bill?
WAG wild ass guess
WDYMBT What do you mean by that?
WGAS Who gives a shit?
WIBAMU Well, I'll be a monkey's uncle.
WIBNI would it be nice if
WMMOWS Wash my mouth out with soap!
WNOHGB where no one has gone before
WRT with regard to
WT without thinking
WTF what the f***
WTFDYTYA Who the f*** do you think you are?
WTFWT What the f*** was that?
WTH what the hell
WTTM without thinking too much
WWS wife wants sex
WYLABOCTGWTR Would you like a bowl of cream to go with that remark?
WYLASOMWTC Would you like a saucer of milk with that comment?
WYTYSYDG What you thought you saw, you didn't get
YAOTM yet another off-topic message
YHGASP You have got a serious problem
YMMV Your mileage may vary
YSS You suck severely
YWSYLS You win some, you lose some
Glossary of Miscellaneous Acronyms and Emoticons
Note :  These are terms that will most commonly appear in news groups or Email messages
Almost any of the Usenet terms can be found enclosed with <> on news groups. An example is <GDR> (or <GD&R>) = Grin, Duck and Run.
 <g> or <G> Grin <jk> Just Kidding
 <vbg> or <VBG Very Big Grin :-] Smirk
 :-) (leads with a colon) Smile :-D Laughing
 :-( Frown ;-)  (leads with a semi-colon) Wink
 :-X Close-mouthed 8-) Wide-eyed
 :-O Open-mouthed