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The FreeBSD Project
http://www.freebsd.org/
PR: 9
http://www.freebsd.org/
PR: 9
The FreeBSD Project. FreeBSD is an advanced operating system for x86 compatible (including Pentium and Athlon), amd64 compatible (including Opteron, Athlon 64, and EM64T), Alpha/AXP, IA-64, PC-98 and UltraSPARC architectures.
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Debian -- The Universal Operating System
http://www.debian.org/
PR: 9
http://www.debian.org/
PR: 9
Debian GNU/Linux is a free distribution of the GNU/Linux operating system. It is maintained and updated through the work of many users who volunteer their time and effort.
More info
More info