AVP Virus Encyclopedia
Brief descriptions of numerous computer viruses. This site requires Frames.
Computer Desktop Encyclopedia
CD-ROM encyclopedia defining 11,000 computer terms. Demo available for download.
High-Tech Dictionary
Everything from :-) to ZyXEL. Large database of definitions plus an easy-access interface.
TechEncyclopedia
Over 14,000 definitions of computer terms and concepts from CMP's TechWeb, online.
Webopedia
Definitions of many computer-related terms. Searchable using search engine or categorized lists.