Richard Matthew Stallman (born March 16, 1953), often shortened to
rms<!-- lower case -->, is an American software freedom activist and
computer programmer. In September 1983, he launched the
GNU Project to create a free
Unix-like operating system, and he has been the project's lead architect and organizer. With the launch of the GNU Project, he initiated the
free software movement; in October 1985 he founded the
Free Software Foundation.
Stallman pioneered the concept of
copyleft, and he is the main author of several copyleft licenses including the
GNU General Public License, the most widely used
free software license. Since the mid-1990s, Stallman has spent most of his time advocating for free software, as well as campaigning against
software patents,
digital rights management, and what he sees as excessive extension of copyright laws. Stallman has also developed a number of pieces of widely used software, including the original
Emacs, the
GNU Compiler Collection, the
GNU Debugger, and various tools in the GNU
coreutils. He co-founded the
League......
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