The Unix system family tree / BSD history chart ----------------------------------------------- First Edition (V1) | Second Edition (V2) | Third Edition (V3) | Fourth Edition (V4) | Fifth Edition (V5) | Sixth Edition (V6) -----* | | | | | | Seventh Edition (V7) | | \ | | \ 1BSD | \ | | \ 2BSD---------------* Eight Edition \ / | | \ / | | \/ | | 3BSD | | | | | 4.0BSD | Ninth Edition | | | 4.1BSD --------------> 2.8BSD | | | | 4.1aBSD ---------------\ | | | \ | | 4.1cBSD --------------> 2.9BSD | | | | 4.2BSD 2.9.1BSD | | | | 4.3BSD -------------> 2.10BSD | | / | | | / 2.10.1BSD | 4.3BSD Tahoe-----+ | | | \ | | | \ | | | 2.11BSD Tenth Edition | | 4.3BSD NET/1 | 4.3BSD Reno | *---------- 4.3BSD NET/2 -------------------+-------------* | | | | 386BSD 0.0 | | | | | | | 386BSD 0.1 ------------>+ | BSDI 1.0 | \ | 4.4-Alpha BSD | | 386BSD 1.0 | | | | | 4.4BSD | FreeBSD 1.0 NetBSD 0.8 | | | | ------ 4.4BSD Lite1 -> BSDI 2.0 FreeBSD 1.1 NetBSD 0.9 / | | | | / 4.4BSD Lite2 -> BSDI 2.1 FreeBSD 1.1.5 | / | | | | / / | FreeBSD 1.1.5.1 | / / BSDI 3.0 | | / / | | | / / v FreeBSD 2.0 <---------------+ / | | / / FreeBSD 2.0.5 NetBSD 1.0 / | | / | | / FreeBSD 2.1 <---------+-*----+--------* | | | | | | FreeBSD 2.1.5 | \ | | | | | | | FreeBSD 2.1.6 | NetBSD 1.1 ------* | | | | | | FreeBSD 2.1.6.1 | | OpenBSD | | | NetBSD 1.2 | | FreeBSD 2.1.7 | | OpenBSD 2.0 | | | NetBSD 1.2.1 | | FreeBSD 2.1.7.1 | | v | | v | | *-FreeBSD 2.2 | | | | | FreeBSD 2.2.1 | | | | | | | | | | | FreeBSD 3.0 <---------* | v Time ---------------- Time tolerance +/- 6 month, depend on which book/article you read. Multics 1965 Unix Summer 1969, DEC PDP-7 First Edition 1971/11/03, DEC PDP-11/20, Assembler Second Edition 1972/06/12, 10 Unix installations Third Edition 1973/02 Pipes, 16 installations Fourth Edition 1973/11 rewriting in C effected, above 30 installations Fifth Edition 1974/06 above 50 installations Sixth Edition 1975/05 port to DEC Vax Seventh Edition 1979/01 first portable Unix Eight Edition 1985/02 Ninth Edition 1986/09 Tenth Edition 1989/10 1BSD late 1977, PDP-11, 30 free copies of 1BSD sent out 2BSD mid 1978 75 2BSD tapes shipped 2.8BSD 2.9BSD 2.9.1BSD 1983/11 2.10BSD 2.10.1BSD 2.11BSD 3BSD late 1979, virtual memory, page replacement, demand paging 4.0BSD 1980/10 4.1BSD 1981/06 4.1aBSD 1982/04 4.1cBSD late 1982 4.2BSD 1983/09 4.3BSD 1986/06 4.3BSD Tahoe 1988/06 4.3BSD NET/1 1988/11 4.3BSD Reno 1990/06 4.3BSD NET/2 1991/06 386BSD 0.0 1992/02 386BSD 0.1 4.4-ALPHA BSD 1992/06 4.4BSD 1993/06 4.4BSD Lite1 1994/06 Bibliography ------------------------ Leffler, Samuel J., Marshall Kirk McKusick, Michael J Karels and John Quarterman. The Design and Implementation of the 4.3BSD UNIX Operating System. Reading, Mass. Addison-Wesley, 1989. ISBN 0-201-06196-1 Salus, Peter H. A quarter century of UNIX. Addison-Wesley Publishing Company, Inc., 1994. ISBN 0-201-54777-5 McKusick, Marshall Kirk, Keith Bostic, Michael J Karels, and John Quarterman. The Design and Implementation of the 4.4BSD Operating System. Reading, Mass. Addison-Wesley, 1996. ISBN 0-201-54979-4 Michael G. Brown. The Role of BSD in the Development of Unix. Presented to the Tasmanian Unix Special Interest Group of the Australian Computer Society, Hobart, August 1993. URL: http://www.dpac.tas.gov.au/~mgb/papers/bsdrole.html Peter H. Salus. Unix at 25. Byte Magazin, October 1994. URL: http://www.byte.com/art/9410/sec8/art3.htm -- Copyright (c) 1997 Wolfram Schneider URL: http://www.de.freebsd.org/de/ftp/unix-stammbaum $Date: 1997/03/30 23:33:44 $ $Revision: 1.12 $