The Ultimate Computer Acronyms Archive
A collection of more than 5500 computer-oriented acronyms with an easy to navigate interface.

TechEncyclopedia
More than 14,000 definitions of computer terms and concepts online.

Glossary of Technical Terms
Common internet related technical terms with informative definitions.

Tech Terms
Computer and Internet jargon.

NetLingo Inc
Dictionary and glossary of Internet jargon: definitions for terminology and words.

TechDictionary
Technology terms and definitions searchable by term or keyword. Includes graphic and text-only versions.

Babel
A list of computer-related abbreviations and acronyms maintained by Irving and Richard Kind.

Barkley's Comprehensive Technology Glossary
A guide to terms relating to the technologies industries and computer science; updated frequently.

Free On-Line Dictionary Of Computing (FOLDOC)
Entries are cross-referenced to each other and to related resources elsewhere on the net. Has multiple mirror locations on the internet.

Computer and Internet Glossary
A comprehensive glossary of computer and Internet terms with easy-to-understand definitions.

Dictionary of Computer Jargon
A simple, but comprehensive glossary aimed mainly at beginners.

High-Tech Dictionary
Definitions to more than 7,000 high-tech terms.

Glossary of Internet Acronyms and Expressions
Definitions of acronyms and phrases commonly used on the internet.

The Information Security and Computer Glossary
An information security glossary with many technical computer terms and phrases.

Netdictionary
Words drawn from Standard Internet English including technical terms, hacker slang, and acronyms.

Whatis.com
Dictionary of computing and Internet terms and phrases

MSDN Online Site Guide - Glossaries
A glossary of Web and programming related terms and acronyms.

Helpwithpcs.com: Jargon Buster
A variety of PC-related terms and abbreviations.

ICDatamaster File-Extension library
Comprehensive index listing arranged alphabetically of file extensions known for DOS, Windows, OS2, Apple and UNIX.

Inside Macintosh Glossary
PDF file with extensive glossary of Macintosh related terms.

On-Line Dictionary of Computing
Searchable listing of terms from computing and related fields.

TekMom's Technology Buzzwords for Students
Illustrated dictionary of computer terms for beginners with links to more detailed information.

NSA Glossary of Security and Intrusion Detection
Glossary of terms used in computer security and intrusion detection originally compiled by Greg Stocksdale of the NSA Information Systems Security Organization.

Internet Cryptography
Glossary of cryptographic and computer terminology from the book "Internet Cryptography".

Geek.com Technical Glossary
A glossary of technical terms with over 2000 terms defined.

Computer Glossary
Searchable glossary of thousands of terms, with brief definitions.

The Jargon File
Online version of The New Hacker's Dictionary with definitions of various arcane computing terms, etomologies.

Glossary of IT Terms with Links
Definitions and links to further information on information technology terms.

TSEG
TSEG is a specialist glossary that concentrates on terms within Search Engine Marketing.

File Extensions - Articulates.net
An alphabatized list of file extensions

Computer Dictionary Info
A large collection of computer terms and acronyms.

HyperDictionary.com Computer Dictionary
Search computer related words and terms alphabetically or using a search bar.

Filename Extensions and Suffixes
A detailed list of filename extensions and suffixes with descriptive explanations.

Webopedia
Large searchable online dictionary and internet search engine for computer and internet terms and technical support. Definitions hyperlinked to further information.

IBM Terminology
Collection of IBM computing terminology glossaries.

Technolopedia
A tutorials resource for most major program languages and software

Webmonkey Glossary
Cross-referenced glossary of technical web and internet terminology.

SANS Institute - Terms Used in Computer Security and Intrusion Detection
Alphabetical list.

Free Web Site Hosting
Web Hosting Glossary of Terms.

Cpupedia
A free online computer and technology encyclopedia.

Saugus.net Computer Terms
A searchable glossary of computer terms covering both the basic and the advanced.

Computing Terms - eLook
Searchable database of over 14,000 computing terms.