UCB is an Acronym for University of California, Berkeley.
Most well-known (in computing circles) for the BSD version of Unix, especially since it was there that InternetProtocol sockets and networking were developed. All BSD code says "Copyright yyyy The Regents of the University of California".
There are 7 separate universities in the University of California system:
and another one that might be San Francisco or Sacrimento if I wasn't too lazy to check right now...
See list of Universities
3 pages link to UCB:
