New project, intended as stable, fast, secure, reliable, easy to use, 32-bit protected mode OS for x86 and later PowerPC systems, open source, many features, graphical user interface (GUI), to replace Microsoft Windows, all versions.
GNU Operating System
Official site of the project to develop a complete Unix-like operating system comprising free software. Includes project history and philosophy, licenses, downloads, and details of how to get involved.
Full-featured, preemptive multi-tasking/threading operating system for 6502. Implements some Unix-like features: signals, semaphores, relocatable fileformat, standard library, internet support via a type of simplified sockets, virtual consoles.