Most of the operating systems listed here are for the IBM PC, Intel and AMD compatibles, though some of them may run on other systems too. Some information on other systems may be found on the Microcomputer and Apple pages.
This semester SigOPS will hold a series of meetings discussing how to build an operating system from scratch. We provide the structure for developing your Very Own OS, you write the code. It's that simple!
This was the default operating system on many 8bit computers. The 16bit version could not compete with DOS because of its high price.
The Unofficial CP/M Web site owes it existance to the tireless and devoted work of Tim Olmstead. After months of negotiating, Tim obtained permission from the owners of CP/M, collected together the files, spent hundreds of hours with scanning and OCR'ing most of the documentation, and continually found some place that the Web page could be hosted.
It may not be easy to say what AtheOS is, but we can be quite positive on some things that it is not:
Development has slowed down since fall 2001. But AtheOS is fully functional; the homepage is hosted on a server running it. And many people are writing AtheOS applications.
is short for Compatible Open-Source Multi Operating-system Environment. It was written by Bill Hayden and uses a powerful high-level C++ API similar to BeOS and Atheos. Version 0.7 was released on 2004-08-26.
An obviously now defunct operating system. All related domains have been taken over by other parties.