Alternative OSs on the Net
Huge, comprehensive, alphabetized list of operating systems and OS link sites. All links, no comments.

Just Say No to Microsoft: Operating Systems
Describes dozens of living OSs, grouped by family similarities. Most are alternatives to Microsoft. You Would also find info related to just say no, microsoft, warez, free, download, ms, windows, Mac OS, beos, linux, freebsd, bsd, new deal, geos and much more.

OS Projects
Alphabetized list, links to many projects. You Would also find info related to osdev, os development, os design, operating system, system programming, assembly, programming and much more.

The OS Center: All About OSs
Alphabetized descriptions and links on many operating systems, related issues, research groups, organizations. You Would also find info related to Free Operating systems, windows clones, operating systems theory, Linux, Unix, Mach, Plan9, Plan 9, BSD Unix, Oasis, Exokernel, Minix, Kea, Keykos, filesystems, NTFS filesystem, MSDOS filesystem, CP/M filesystem, Unix filesystem and much more.

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.

Entries Relating to Operating System
Alphabetized list of some 500 links to entries that relate to OSs, from FOLDOC (Free Online Dictionary of Computing) at the University of Brighton, BURKS project.

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.

Operating Systems
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] You Would also find info related to operating system operating systems how to guide free tutorial tips linux mac os macintosh dos msdos ms-dos os/2 be posix unix windows 2000 98 95 3.x nt win95 win98 user interface configuration installation upgrade beos win2000 wince windows ce pocket pc and much more.

OS Projects
Sortable database of links of many OS projects on the Web. Sorts OSs into many broad categories to make it easier to search.

OS WebRing
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. You Would also find info related to OS/2 Linux Be QNX OpenDOS Caldera FreeDOS Elate Oberon Plan 9 DRDOS JOS IACT and much more.