{VAX} and PDP-11 developed by Bill Joy and others at
{Berzerkeley} starting around 1980, incorporating paged virtual
memory, TCP/IP networking enhancements, and many other features.
The BSD versions (4.1, 4.2, and 4.3) and the commercial versions
derived from them (SunOS, ULTRIX, and Mt. Xinu) held the technical
lead in the Unix world until AT&T's successful standardization
efforts after about 1986, and are still widely popular. Note that
BSD versions going back to 2.9 are often referred to by their
version numbers, without the BSD prefix. See {4.2}, {{Unix}},
{USG Unix}.

:BUAF: // /n./ [abbreviation, from alt.fan.warlord] Big
Ugly ASCII Font -- a special form of {ASCII art}. Various
programs exist for rendering text strings into block, bloob, and
pseudo-script fonts in cells between four and six character cells
on a side; this is smaller than the letters generated by older
{banner} (sense 2) programs. These are sometimes used to render
one's name in a {sig block}, and are critically referred to as
`BUAF's. See {warlording}.

:BUAG: // /n./ [abbreviation, from alt.fan.warlord] Big
Ugly ASCII Graphic. Pejorative term for ugly {ASCII art},
especially as found in {sig block}s. For some reason, mutations
of the head of Bart Simpson are particularly common in the least
imaginative {sig block}s. See {warlording}.

:bubble sort: /n./ Techspeak for a particular sorting technique
in which pairs of adjacent values in the list to be sorted are
compared and interchanged if they are out of order; thus, list
entries `bubble upward' in the list until they bump into one