BSD (originally: Berkeley Software Distribution) refers to the particular
version of the UNIX operating system that was developed at and distributed
from the University of California at Berkeley. "BSD" is customarily preceded
by a number indicating the particular distribution level of the BSD system
(for example, "4.3 BSD"). BSD UNIX has been popular and many commercial
implementations of other UNIX variants (including Linux and the SSH protocol)
are based on, or include, some BSD code.
Distributions
General
BSD Links: