Appendix A. The Beauty of Free Software
OpenOffice.org has been written and released under a free-software/open source license. For end users, the chief advantage of installing open source software is that usually it doesn't cost any money, which, in political terms, makes it free, as in "free beer." However, there's an important addition to this, because open source software is also free as in "free speech."
This concept was outlined by Richard M. Stallman in 1983 when he set out to create a free variant of UNIX called GNU. Stallman's operating system dream has not been fully realized, even though the GNU ethos was adopted by Linus Torvalds when he began the Linux project. But the important concept of "copyleft" and its attendant GNU General Public ...
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