The Computers: Software: Operating Systems: x86: (SkyOS x86 )

SkyOS is a mostly POSIX compliant operating system (OS). Begun in 1996, it is slowly growing in scope. Due to its POSIX compliance, and port of the GTK+ widget toolkit, many Unix-Linux programs are ported to it: AbiWord, Gaim, some games (e.g., Quake), and it includes the core of open source GNU tools, including GCC. OS licensing is proprietary. SkyOS x86 Operating Systems Software Computers.

SkyOS ( Sky O perating S ystem ) was a prototype commercial, proprietary, graphical desktop operating system written for the x86 computer architecture. (wikipedia)