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Berkeley Software Distribution (BSD) was a Unix operating system derivative developed and distributed by the Computer Systems Research Group (CSRG) of the University of California, Berkeley, from 1977 to 1995. Today the term "BSD" is often used non-specifically to refer to any of the BSD descendants which together form a branch of the family of Unix-like operating systems. Operating systems derived from the original BSD code remain actively developed and widely used.
The released year of BSD
1. First Berkeley Software Distribution (1BSD), which was released on March 9, 1978.
2. The Second Berkeley Software Distribution (2BSD), released in May, 1979.
3. The Third Berkeley Software Distribution (3BSD), at the end of 1979.
4. Fourth Berkeley Software Distribution (4BSD) was released in November 1980 and offered a number of enhancements over 3BSD.
What is PC-BSD?
PC-BSD® is a user friendly desktop Operating System based on FreeBSD.
Known widely for its stability and security in server environments, FreeBSD provides an excellent base on which to build a desktop operating system.
PC-BSD uses a host of popular open source window managers and uses a custom-tailored application installer that puts popular applications in easy reach of users.
Figure1 : The current stable version of the PC-BSD operating system.