X86 Operating Systems

• DOS
• Windows@

• AtheOS@
• BeOS@
• BugOS@
• DR-DOS@
• DragonFly@
• Erlang@
• FreeBSD@
• FreeVMS@
• GEM@
• GNU Hurd@
• Go@

• JxOS@
• Linux@
• MINIX@
• NetBSD@
• OpenBSD@
• OS-2@
• PETROS@
• RTOS-32@
• SCO@
• Solaris@
• Yamit@

• Domainatrix  - Intel/MD x86 architecture operating system, with list of features.
• HanoiOS  - Implementation of Hanoi OS for x86. Includes downloadable files, source archive and sample screenshot of applications.
• LADSoft PMODE Demos  - Includes the LSD operating system and source code, as well as a virtual 8086 mode demo and Pmode transition demo.
• Mobius Operating System: SourceForge  - IA-32 platform open-source OS, compatible with POSIX and Win32. Includes references and sample screenshots of application with brief descriptions.
• ScottsNewOS  - Features an OS with a graphical user interface that was designed to run on as little as four megabytes of RAM.
• SkyOS  - Operating system written for x86-based personal computers. Contains documentation, forum, news and FAQs.
• Synapse Operating Services  - Intended to run on x86-64 with some changes. Provides project details and news.
• TriangleOS  - 32-bit multi-tasking operating system for x86 platform, written in C and Assembly. Plus overview, news and FAQs.
• Visopsys  - Alternative OS for PC-compatible, free software and licensed under GNU GPL. Includes news, change log and files for download with descriptions.
• XAOS  - Operating system that runs on Intel 386+ processors. Plus technical information and downloadables with brief descriptions.