Competition Among Open Source Compilers Feb 2, 2008, 05 :00 UTC (18 Talkback[s]) (7210 reads) (Other stories by David Chisnall)
"Since its creation, the C language has been tightly tied to UNIX. C was designed as a portable assembly language for reimplementing UNIX, to make it easier to port to different platforms.
"In 1984, Richard Stallman began the GNU (GNU’s Not UNIX) Project to provide a clone of the UNIX operating system using entirely Free Software..."