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BSD (Berkely Software Distribution)
FreeBSD
NetBSD
OpenBSD
SunOS (Stanford Univerity)
Solaris (SUN)
NextStep
MacOS X
Xenix OS
GNU Project
GNU / Linux
Unix Time-Sharing System (Bell Labs)
HP-UX
AIX (IBM)
UnixWare (Univel/SCO)
IRIX (SGI)
BSD family
System III & V family
1970
1980
1990
2000
Time
Bill Joy
Microsoft/SCO
Richard Stallman
Darwin
GNU/Hurd 0.2
Linus Torvalds
Andrew S. Tanenbaum
Minix
Ken ThompsonDennis Ritchie (C language)
5.4
2.0.2
3.7
10
4
3.2
2.6.12.5
2.0.2
10
11iv2
5 L
7.1.4
6.5