from
The Free On-line Dictionary of Computing (8 July 2008)
Berkeley Software Distribution
4.2BSD
Berkeley 4.2
Berkeley Unix
BSD
BSD Unix
<operating system> (BSD) A family of {Unix} versions developed
by {Bill Joy} and others at the {University of California at
Berkeley}, originally for the {DEC} {VAX} and {PDP-11}
computers, and subsequently ported to almost all modern
general-purpose computers. BSD Unix incorporates {paged}
{virtual memory}, {TCP/IP} networking enhancements and many
other features.
BSD UNIX 4.0 was released on 1980-10-19. The BSD versions
(4.1, 4.2, and 4.3) and the commercial versions derived from
them ({SunOS}, {ULTRIX}, {Mt. Xinu}, {Dynix}) held the
technical lead in the Unix world until {AT&T}'s successful
standardisation efforts after about 1986, and are still widely
popular.
See also {Berzerkeley}, {USG Unix}.
(2005-01-20)