Haiku is an open source desktop operating system currently under development inspired by the BeOS. Haiku aims to provide users of all levels with a personal computing experience that is simple yet powerful, and free of any unnecessary compl...
DexOS is a 32-bit operating system written in assembly language, based on the idea that it would be cool to have a OS based on consoles - like you get on the Xbox, PS2 or GameCube - but for x86 computers. With this new OS you are free to co...
ReactOS is a free, modern operating system based on the design of Windows XP/2003. Written completely from scratch, it aims to follow the Windows architecture designed by Microsoft from the hardware level right through to the applicatio...