refers to all sorts of things, but notably the version of UNIX
from the University of California at Berkeley (the B
istribution), the original license
thereof and its many derivatives. Tcl
, which also started out at the University of California, uses a very similar license, though without the so-called advertising clause
(i.e., you are not required to put a big message in saying that you are using Tcl and acknowledging the original authors).
See the Wikipedia article
for an overview of BSD-derived licenses.
Discussion editKevin Kenny
noted in the Tcl chatroom
on 2003-06-12: "UCB removed the advertising clause in 1999."
I'd risk saying that, in the 21st century, whenever someone talks about BSD, they most probably mean either the BSD license or one of the three most popular "BSD UNIX
" distributions: FreeBSD