See also:

• Computers: Directories  (0)
• Computers: Programming: Languages: Directories  (13)
• Computers: Programming: Resources: Directories  (17)
• Computers: Software: Directories  (146)
• Computers: Software: Software Engineering: Directories  (5)

This category in other languages:
	Russian  (5)

• Alternative OSs on the Net - A list of operating systems and OS link sites.
• A Catalog of Operating Systems - Classified, alphabetic listing of most operating systems, past and present, distributed commercially or reported in English+language literature, platform oriented. From Computer Science 258, West Virginia University.
• Microcomputer Operating Systems - Some 70 OSs that run on microcomputers, PCs. User interfaces in earlier systems are command+line, character+oriented; later systems are mostly GUI+based. List, with brief descriptions, no links. From West Virginia University.
• Open Source Ring - Alphabetized list of many links, OSs, projects.
• Paul Hsieh OS Page - Loosely categorized list of about 100 links to developer resources for creating OSs, emulators, alternative OSs.