Death Star

Death Star n.  [from the movie "Star Wars"] 1. The
   AT&T corporate logo, which appears on computers sold by AT&T and
   bears an uncanny resemblance to the Death Star in the movie.  This
   usage is particularly common among partisans of {BSD} UNIX, who
   tend to regard the AT&T versions as inferior and AT&T as a bad guy.
   Copies still circulate of a poster printed by Mt. Xinu showing a
   starscape with a space fighter labeled 4.2 BSD streaking away from
   a broken AT&T logo wreathed in flames.  2. AT&T's internal
   magazine, "Focus", uses `death star' to describe an
   incorrectly done AT&T logo in which the inner circle in the top
   left is dark instead of light -- a frequent result of
   dark-on-light logo images.