| 3GP | 3rd Generation Project |
| 3GPP | 3rd Generation Partnership Project |
| AAC | Advanced Audio Coding |
| ACID | Atomicity Consistency Isolation Durability |
| ADSL | Asymmetric Digital Subscriber Line |
| AFAIK | (as far as I know; email) |
| AGP | Advanced Graphics Port |
| AI | Artificial Intelligence |
| AIM | AOL Instant Messenger |
| ALGOL | Algorithmic Language |
| ALGOL | Algorithmic Language |
| ALT | ALTernate lifestyle (USENET newsgroup category) |
| ALU | Arithmetic Logic Unit |
| ANSI | American National Standards Institute |
| AOL | America Online |
| API | Application Program Interface |
| APT | Automatically Programmed Tooling |
| ARP | Address Resolution Protocol |
| ARPANET | Advanced Research Projects Agency Network |
| ARQ | Automatic Repeat Request |
| AS | Autonomous System |
| ASCII | American Standard Code for Information Interchange |
| ASP | Active Server Pages |
| ASP | Association of Shareware Professionals |
| ASPI | Advanced SCSI Programming Interface (Adaptec) |
| AT | Advanced Technology |
| ATA | Advanced Technology Attachment (original hard drive interface) |
| ATDT | Attention Dial Tone (modem command) |
| ATM | Asynchronous Transfer Mode |
| ATZ | Attention Restore configuration profile from nonvolatile RAM (modem command) |
| AUI | Attachment Unit Interface |
| AUTOEXEC | Autoexec Automatic Execution file (AUTOEXEC.BAT automatically executed on startup of DOS systems) |
| AVI | Audio Video Interleave |
| AWK | (Unix language named after its authors… Al Aho, Peter Weinberger and Brian Kernighan) |
| B Keyboard | Kilobyte (1,024 bytes; also kB) |
| B2B | Business to Business |
| B2C | Business to Consumer |
| BASIC | Beginner’s All-purpose Symbolic Instruction Code |
| BCC | Blind Carbon Copy |
| BCD | Binary Coded Decimal |
| BCR | Bar Code Reader |
| BDSL | Broadband DSL |
| BEDO | Burst Extended Data Out (RAM) |
| BGP | Border Gateway Protocol |
| BHTML | Broadcast Hyper Text Markup Language |
| BIOS | Basic Input Output System |
| BIPS | Billion Instruction Per Second |
| BIU | Bus Interface Unit |
| BMP | Bitmap |
| BPS | Bits Per Second + Bytes Per Second |
| BRD | Blu-Ray Disc |
| BsoD | Blue (or black) Screen of Death( Windows just died (again) |
| CAD | Computer Aided Design |
| CADD | Computer Aided Design and Drafting |
| CAI | Computer Aided Instruction |
| CAM | Computer Aided Manufacturing |
| CAN | Campus Area Network |
| CC | Carbon Copy |
| CCITT | Comite Consultatif International Telegraphique et Telephonique/ |
| CD | Compact Disk |
| CD | Change Directory (UNIX/DOS) |
| CD0R/W | Compact Disk – Rewritable |
| CDMA | Code-Division Multiple Access (wireless/cellphone protocol) |
| CDPD | Cellular Digital Packet Data (wireless protocol) |
| CD-R | Compact Disk – Recordable |
| CDROM | Compact Disk Read Only Memory |
| CDRW | Compact Disk Rewritable |
| CD-WO | Compact Disk – Write Once |
| CD-XA | Compact Disk – Extended Architecture |
| CERN | The European Particle Physics Laboratory (initials originally from Conseil European pour la Recherche Nucleaire) |
| CERT | Computer Emergency Response Team) |
| CGI-BIN | Common Gateway Interface – Binary (programming for Web forms) |
| CIS | CompuServe Information Service |
| CISC | Complex Instructions Set Computers |
| CMD | Command |
| CMOS | Complementary Metal-Oxide Semiconductor (type of nonvolatile memory chip) + PC Configuration stored on CMOS |
| CMYK | Cyan-Magenta-Yellow-Black (color model) |
| CNM | Circulatory Network Mode |
| COAX | Coaxial Cable (for Ethernet and similar networks) |
| COBOL | Common Business Oriented Language |
| COM1 | First serial Port (asynchronous port) |
| COM2 | Second serial Port |
| COMDEX | Computer Dealers Exposition (biggest yearly U.S. computer show) |
| COMPUTER | Commonly Operated Machine Particularly Used for Trade/Technology, Education, and Research. |
| CPI | Clock / Cycle Per Instruction |
| CPU | Central Processing Unit |
| CROM | Computerized Range of Motion |
| CRT | Cathode Ray Tube( standard type computer monitor display |
| CSID | Call Subscriber ID (for FAX and phone caller ID) |
| CSLIP | Compressed Serial Line Interface Protocol (Internet) |
| CSS | Cascading Style Sheets |
| CSV | Comma-Separated Value/Variable (file type) |
| CTRL | Control (computer keyboard key) |
| CUI | Character User Interface |
| DAC | Data Acquisition and Control + Digital to Analog Converter |
| DARPANET | Defense Advanced Research Project Agency Network |
| DAT | Digital Audio Tape |
| dB | Decibel |
| DBMS | Data Base Management System |
| DCD | Data Carrier Detect |
| DCE | Data Communications Equipment + Distributed Computing Environment OSF) + Distributed Computing Equipment |
| DCF | Data Communication Facility(IBM) + |
| DDE | Direct Data Entry + Dynamic Data Exchange (Microsoft) |
| DDL | Data Definition Language |
| DDR | Double Data Rate (double=speed of RAM) |
| DDR – SDRAM | Double Data Rate – Synchronous Dynamic Random Access Memory |
| DHCP | Dynamic Host Configuration Protocol |
| DHTML | Dynamics Hyper Text Markup Language |
| DIMM | Dual Inline Memory Module |
| DIN | Deutsche Industrie Norm (German equivalent of EIA) |
| DIP | Dual In-line Package (e.g., DIP switches) |
| DIR | Directory (file) |
| DLL | Dynamic Link Library |
| DMA | Direct Memory Access/Addressing |
| DML | Data Manipulation Language |
| DNA | Distributed Internet Architecture |
| DNS | Domain Name System |
| DOC | Data Optimizing Computer |
| Doc | Document |
| DOS | Disk Operating System |
| DPI | Dots Per Inch |
| DRAM | Dynamic Random Access Memory |
| DSL | Digital Subscriber Line( fast Internet connection over existing phone lines |
| DSTN | Double Supertwisted Nematic (LCD screen type) |
| DTMF | Dual Tone Multiple Frequency (phone tones) |
| DUN | Dial-Up Networking (Microsoft) |
| DVD | Digital Video/Versatile Disc |
| DVDR | Digital Versatile Disk Recordable |
| DVDRW | Digital Versatile Disk Rewritable |
| DVI | Digital Visual Interface |
| DVR | Digital Video Recorder |
| EB | EXA BYTE |
| EBCDIC | Extended Binary Coded Decimal Interchange Code (IBM) (is to ASCII as Sanskrit is to English) |
| ECC | Error Check Code + Error Checking and Correction + Error Correction Code |
| E-Commerce | Electronic Commerce |
| ECP | Enhanced Capabilities Port (Microsoft) |
| EDC | Electronic Digital Computer |
| EDGE | Enhanced Data Rate for GSM (Global System for Mobile Communication) Evolution |
| EDI | Electronic Data Interchange |
| EDO | Extended Data Out (RAM) |
| EDP | Electronic Data Processing |
| EDSAC | Electronic Delay Storage Automatic Calculator |
| EEPROM | Electronically Erasable Programmable Read Only Memory |
| EFS | Encrypted File System |
| EiB | EXBI BYTE |
| EIDE | Enhanced Integrated Drive Electronics (hard drive interface) |
| EISA | Extended Industry Standard Architecture (PC bus design) |
| EMACS | Editing Macros (Unix editor) |
| E-Mail | Electronic Mail |
| ENIAC | Electronics Numerical Integrator And Calculator |
| EOF | End of File (^Z character) |
| EPP | Enhanced Parallel Port |
| EPROM | Erasable Programmable Read Only Memory |
| EROM | Erasable Read Only Memory |
| ESDI | Enhanced Small Device Interface |
| EWAN | Emulator Without A Good Name (Internet) |
| FAQ | Frequently Asked Question |
| FAT | File Allocation Table |
| FDC | Floppy Disk Controller |
| FDD | Floppy Disk Drive |
| FDISK | Fixed Disk (DOS utility) |
| FIFO | First-In, First-Out |
| FLOPS | Floating Point Operations Per Second |
| FM | Frequency Modulation |
| FORTRAN | Formula Translation |
| FPM F | ast Page Mode (RAM) |
| FPS | Frames Per Second |
| FS | File System |
| FTP | File Transfer Protocol |
| FYI | For Your Information |
| GB | Giga Byte |
| GBPS | Gigabytes/Gigabits Per Second |
| GDI | Graphical Device Interface |
| GHz | GigaHertz |
| GiB | GIBI BYTE |
| GIF | Graphic Interchangeable Format |
| GIGO | Garbage In Garbage Out |
| GIS | Geographic Information System |
| GML | Geography Markup Language |
| GNU | Gnu’s Not Unix (operating system that really IS Unix) |
| GPRS | General Packet Radio Service |
| GPS | Global Positioning Satellite/System |
| GSM | Global System for Mobile Communication |
| GUI | Graphical User Interface |
| GW-basic | Gee Whiz BASIC |
| HD | Hard Disk |
| HDD | Hard Disk Drive |
| HDMI | High Definition Multimedia Interface |
| HDSL | High-Data-Rate Digital Subscriber Line (DSL) + High-Speed Digital Subscriber Loop |
| HDTV | High Definition Television |
| HEX | Hexadecimal |
| HP | Hewlett Packard/Horse Power |
| HPC | Handheld Personal Computer/High Performance Computer |
| HPFS | High-Performance File System (Windows NT) |
| HPGL | Hewlett-Packard Graphics Language |
| HPIB | Hewlett-Packard Interface Bus |
| HPLJ | Hewlett-Packard Laser Jet |
| HSDPA | High Speed Downlink Packet Access |
| HSV | Hue Saturation Value (color model) |
| HTML | Hyper Text Markup Language |
| HTTP | Hyper Text Transfer Protocol |
| HTTP-NG | HTTP Next Generation |
| HTTPS | Hyper Text Transfer Protocol Secure |
| HVD | Holographic Versatile Disc |
| Hz | Hertz (frequency, per second) |
| I/O | Input/Output (serial and parallel ports) |
| IBM | International Business Machines |
| IC | Integrated Circuit |
| ICANN | Internet Corporation of Assign Names & Numbers |
| ICT | Information Communication Technology |
| IDE | Integrated Development Environment (Borland) + Integrated Drive Electronics + Intelligent Drive Electronics |
| IEEE | Institute of Electrical and Electronic Engineer |
| IMAP | Internet Message Access Protocol |
| IMAP4 | Internet Message Access Protocol Version 4 |
| IMHO | (in my humble opinion; email) |
| INFO | Information |
| INTEL | Integrated Electronics |
| IO | Input Output |
| IOP | Input Output Processor |
| IP | Internet Protocol |
| IPV4 | Internet Protocol Version 4 |
| IPV6 | Internet Protocol Version 6 |
| IPX | Internetwork Packet Exchange (Novell) |
| IR Infrared | |
| IrDA | Infrared Data Association (Ir port standard) |
| IRQ | Interrupt Request (PC hardware signal) |
| ISA | Industry Standard Architecture |
| ISDN | Integrated Services Digital Network (digital phone line) |
| ISO | International Standard Organization/ International Org for Standardisation |
| ISP | Internet Service Provider |
| IT | Information Technology |
| IVR | Interactive Voice Response |
| I-WAY | Information Highway |
| J2EE | Java 2 Platform Enterprise Edition |
| JAD | Java Application Descriptor/Development |
| JAR | Java Archive |
| JPEG | Joint Photographic Expert Group |
| JS | Java Script |
| JSP | Java Server Page |
| KB | KILOBYTE |
| KBD | Key Board |
| Kbps | Kilobits/Kilobytes Per Second |
| kHz | Kilohertz |
| LAN | Local Area Network |
| LCD | Liquid Crystal Display |
| LED | Light Emitting Diode |
| LF | Line Feed |
| LIF | Low Insertion Force |
| LINUX | (Free-Source version of UNIX Operating system named after Linus Torvalds) |
| LLL | Low Level Language |
| LPI | Lines Per Inch |
| LPT | Line Printer |
| LPT1 | First Parallel Printer Port |
| LPT2 | Second Parallel Printer Port |
| LQ | Letter Quality |
| LSI | Large Scale Integration |
| LZW | Lempel-Ziv-Walsh (algorithm) |
| MAC | Media Access Control |
| MAN | Metropolitan Area Network |
| MANET | Mobile Ad-Hoc Network |
| MB | Motherboard/ Megabyte |
| MBASIC | Microsoft BASIC (Microsoft) |
| MBPS | Megabits/Megabytes Per Second |
| Mbps | Megabits Per Second |
| MD | Make Directory (DOS/Unix) |
| MEG | Megabyte |
| MFS | Macintosh File System (Macintosh) |
| MHz | Mega Hertz |
| MICR | Magnetic Ink Character Recognition |
| MIDI | Musical Instrument Digital Interface |
| MIME | Multipurpose Internet Mail Extensions |
| MIPS | Million Instructions Per Second |
| MMX | Multimedia Extensions (additional CPU instructions) |
| MODEM | Modulator Demodulator |
| Mp3 | MPEG Audio Layer 3 |
| Mp4 | MPEG – 4 AVC (Advanced Video Coding) |
| MPC | Multimedia Personal Computer (Microsoft) |
| MPEG | Motion Picture Experts Group |
| MSCDEX | Microsoft Compact Disc Extension |
| MS-DOS | Microsoft – Disk Operating System |
| MSIE | Microsoft Internet Explorer (Microsoft) |
| MTBF | Mean Time Between Failures |
| NAT | Network Address Translation |
| NCSA | National Center for Supercomputing Applications |
| NIC | Network Interface Card |
| NICAD | Nickel Cadmium |
| NIIT | National Institute of Information Technology |
| NIMH | Nickel-Metal Hydride |
| NNTP | Network News Transfer Protocol (Internet) |
| NSFNET | National Science Foundation Network |
| NTFS | New Technology File System |
| NTP | Network Time Protocol |
| OCR | Optical Character Reader / Recognition |
| OCX | OLE Custom Control |
| OLE | Object Linking and Embedding (Microsoft) |
| OMR | Optical Mark Reader/Recognition |
| OOP | Object Oriented Programming |
| OPEN GL | Open Graphics Library |
| OS | Operating System |
| OSI | Open Systems Interconnection |
| P2P | Point to Point Protocol |
| PAN | Personal Area Network |
| PB | PETA BYTE |
| PBSRAM | Pipeline Burst RAM |
| PC | Personal Computer |
| PCB | Printer Circuit Board |
| PC-DOS | Personal Computer – Disk Operating System (IBM) |
| PCI | Peripheral Component Interconnect |
| PCMCIA | Personal Computer Memory Card International Association |
| PD | Public Domain |
| PDA | Personal Digital Assistant |
| PDF | Portable Document Format |
| PDU | Protocol Data Unit / Power Distribution Unit |
| PGP | Pretty Good Privacy (name of encryption program) |
| PHP | Hypertext Preprocessor |
| PiB | PEBI BYTE |
| PIM | Personal Information Manager |
| PING | Packet Internet/Internetwork Groper |
| PIXEL | Picture Element |
| PNG | Portable Network Graphics |
| PNP | Plug and Play |
| POP | Post Office Protocol (protocol for distributing email) |
| POP3 | Post Office Protocol Version3 |
| Popmail | email via POP |
| POST | Power On Self Test |
| PPM | Pages Per Minute |
| PPP | Point to Point Protocol |
| PPPoA | Point to Point Protocol Over ATM |
| PPPoE | Point to Point Protocol Over Ethernet |
| PRN | Printer |
| PROM | Programmable Read Only Memory |
| PRTSC | Print Screen |
| PSU | Power Supply Unit |
| RAID | Redundant Arrays of Independent Disks + Redundant Arrays of Independent Drives + Redundant Arrays of Inexpensive Disks |
| RAM | Random Access Memory |
| RARP | Reverse Address Resolution Protocol |
| RDBMS | Relational Data Base Management System |
| RDRAM | Rambus Dynamic Random Access Memory |
| REM | Remark (comment) |
| RGB | Red-Green-Blue (color model) |
| RIMM | Rambus Inline Memory Module |
| RIP | Routing Information Protocol |
| RISC | Reduced Instruction Set Computer |
| RJ-11 | Standard U.S. phone connector |
| RJ-45 | Standard Ethernet connector |
| RLL | Run Length Limited (encoding scheme for hard disks) |
| RLSI | Ridiculously Large-Scale Integration |
| RMA | Return Material Authorization + Return to Manufacturer Authorization |
| RMDIR | Remove Directory (DOS/Unix) |
| RN | Read News (Internet) |
| ROM | Read Only Memory |
| ROTFL | (rolling on the floor laughing; email) |
| RPM | Revolutions Per Minute |
| RTF | Rich Text Format |
| SAM | Software Asset Management/Sequential Access Method |
| SAN | Storage Area Network |
| SCSI | Small Computer System Interface (for hard drives, scanners, etc.) |
| SDD | Solid State Drive |
| SDRAM | Synchronous Dynamic Random Access Memory |
| SFTP | Secure File Transfer Protocol |
| SG | Message |
| SGML | Standard Generalized Markup Language |
| SGRAM | Synchronous Graphics RAM |
| SIM | Subscriber Identity Module |
| SIMM | Single In-line Memory Module |
| SIP | Session Initiation Protocol |
| SIPP | Single In-line Pin Package |
| SIU | Serial Interface Unit |
| SLIP | Serial Line Interface Protocol |
| SMIME | Secure Multipurpose Internet Mail Extension |
| SMPS | Switch Mode Power Supply |
| SMS | Short Message Service s |
| SMTP | Simple Mail Transfer Protocol |
| SNAP | Sub Network Access Protocol |
| SNMP | Simple Network Management Protocol |
| SNOBOL | String Oriented Symbolic Language |
| SO-DIMM | Small Outline DIMM |
| SRAM | Static Random Access Memory |
| SSH | Secure Shell |
| SSL | Secure Sockets Layer |
| SVGA | Super Video Graphics Array |
| SW | Software |
| SYSOP | System Operator |
| TAPI | Telephony Application Programming Interface |
| TBPS | Tera Bytes Per Second |
| TCP/IP | Transmission Control Protocol/Internet Protocol |
| TDMA | Tone-Division Multiple Access wireless/cellphone protocol |
| Tel Net | Telecommunication Networking |
| TEMP | Temporary |
| TFT | Thin Film Transistor |
| TFTP | Trivial File Transfer Protocol |
| Thomas | The (U.S.) House (of Representatives) Open Multimedia Access System |
| TiB | TEBI BYTE |
| TIFF | Tagged Image File Format |
| TIPS | Trillion Instruction Per Second |
| TMP | Temporary |
| TWAIN | Technology Without Any Interesting Name (connection between application and scanner software) |
| TXT | Text |
| UAE | Unrecoverable Application Error |
| UART | Universal Asynchronous Receiver/Transmitter |
| UDMA | Ultra Direct Memory Access |
| UDP | User Datagram Protocol |
| UHF | Ultra High Frequency |
| UI | User Interface |
| UMB | Upper Memory Block (LIM/AST) |
| UMTS | Universal Mobile Telecommunication System |
| UNIVAC | Universal Automatic Computer/Universal Non Integrated Vacuum Actuated Computer |
| UNIX | (AT&T Bell Laboratories Operating System) |
| UPS | Uninterruptible Power Supply |
| UPS | Uninterruptible Power Supply |
| USE | NET User’s Network (Internet) |
| UUCP | Unix-To-Unix Copy Program |
| UXGA | Ultra XGA; see XGA; 1600×1200 pixels |
| VAX/VMS | Virtual Address Extension/Virtual Memory System (DEC) |
| VCD | Video Compact Disk |
| VDT | Video Dial Tone + Video Display Terminal |
| VDU | Visual Display Unit |
| VFAT | Virtual File Allocation Table (Microsoft) |
| VGA | Video/Visual Graphic Adapter |
| VGA | Video Graphics Array( IBM/Windows 640×480 color graphics display standard |
| VHF | Very High Frequency |
| VIRUS | Vital Information Resource Under Seized |
| VIRUS | Vital Information Resource Under Siege |
| VOIP | Voice Over Internet Protocol |
| VPN | Virtual Private Network |
| VRAM | Video Random Access Memory |
| VRAM | Video Random Access Memory |
| VRML | Virtual Reality Modeling Language |
| VxD | Virtual Extended Driver (Microsoft) |
| WAIS | Wide Area Information Server |
| WAN | Wide Area Network |
| WAP | Wireless Application Protocol |
| WBMP | Wireless Bitmap Image |
| WFW | Windows For Workgroups (Microsoft) |
| WIFI | Wireless fidelity |
| WIMAX | Worldwide Interoperability for Microwave Access |
| WINS | Windows Internet Name Service |
| WLAN | Wireless Local Area Network |
| WMA | Windows Media Audio |
| WML | Wireless Markup Language |
| WMV | Windows Media Video |
| WORM | Write Once, Read Many |
| WP | WordPerfect + Word Processing + Write Protected |
| WPM | Words Per Minute |
| WRAM | Windows RAM (graphics card) |
| WS | WordStar + Workstation |
| WWW | World Wide Web |
| WYSIWYG | What You See Is What You Get |
| XGA | Extended Graphics Array (IBM)( generically, 1024×768 color standard |
| XHTML | Extensible Hyper Text Markup Language |
| XMF | Extensible Music File |
| XML | Extensible Markup Language |
| XMS | Extended Memory Specification |
| XSL | Extensible Style Language |
| XT | Extended Technology |
| Yahoo | Yet Another Hierarchical Officious Oracle |
| YB | YOTTA BYTE |
| YiB | YOBI BYTE |
| ZB | ZETTA BYTE |
| ZiB | Zebi Byte |
| ZIF | Zero-Insertion Force (socket) |
