GNU

GNU is an operating system composed entirely of free software.[1] While GNU is UNIX-like, it's not UNIX. In fact, GNU is a recursive acronym for "GNU's not UNIX".[2] GNU is commonly distributed with Linux as GNU/Linux, but it can work with other kernels, such as GNU Hurd and Linux-libre.

History

The story of the GNU operating system all starts with our GNU/Lord and GNU/Savior, Richard Stallman. After coming up with the idea of free software at MIT, Stallman set off to create the first free operating system.[3][4]