GNU/Linux

GNU's Not Unix! The GNU Project was launched in 1984 to develop a complete Unix-like operating system which is free software: the GNU system. (GNU is a recursive acronym for ``GNU's Not Unix; it is pronounced "guh-NEW".) Variants of the GNU operating system, which use the kernel Linux, are now widely used; though these systems are often referred to as ``Linux, they are more accurately called GNU/Linux systems. http://www.gnu.org/home.html