Berkeley Software Distribution

Berkeley Software Distribution (BSD, sometimes called Berkeley Unix) is the UNIX operating system derivative developed and distributed by the Computer Systems Research Group of the University of California, Berkeley, from 1977 to 1995.

Historically, BSD has been considered as a branch of UNIX&mdash;"BSD UNIX" because it shared the initial codebase and design with the original AT&T UNIX operating system.

Modern open source BSD descendants

 * FreeBSD
 * NetBSD
 * OpenBSD

Links

 * Wikipedia Article
 * Broome County BSD User's Group