Huge, comprehensive, alphabetized list of operating systems and OS link sites. All links, no comments.
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.
Categorized, large link list of resources on several operating systems: Linux, Windows, BSD, Mac OS X, Unix, Solaris, Palm OS, Symbian, Stinger (SmartPhone), general.
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.
Loosely categorized list of about 100 links to developer resources for creating OSs, emulators, alternative OSs.
Links to tutorials, tips, free online how-to guides for BeOS, DOS, Macintosh; POSIX, Unix, Linux; OS/2, Windows 3.x-95/98/Me-NT/2000/XP-CE, mixed. [Knowledge Hound how-to directory]
Describes dozens of living OSs, grouped by family similarities. Most are alternatives to Microsoft.
Alphabetized list of many links, OSs, projects.