Founded in 1985, the Free Software Foundation defends and promotes computer users' right to use, study, copy, modify, and redistribute computer programs. The FSF promotes the development and use of free (as in freedom) software -- particularly the GNU operating system and its GNU/Linux variants -- and free documentation for free software.| www.fsf.org
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Since 1983, developing the free Unix style operating system GNU, so that computer users can have the freedom to share and improve the software they use.| www.gnu.org