BSD

BSD is an Open Source copyright.

Formally known as Berkeley Software Distribution. It was the distribution of the Linux Operating system which was developed by the Computer Systems Research Group of University of California, Berkeley from 1977 to 1995. Today BSD normally stands for the BSD descendants of that code. These include such projects as FreeBSD, NetBSD, OpenBSD and DragonFly BSD.

Bell Labs early distribution of Unix in the 1970s included the source code. This allowed researchers at universities to modify and extend it further.

Berkeley's first Unix system was a PDP-11. It was installed in 1974, and the computer science department has been using it since then. Other universities became interested in the software. In 1977 Bill Joy, who was a graduate student at Berkeley at the time, started compiling the first Berkeley Software Distribution or 1BSD. It was released on March 9, 1978. It's main differences was a Pascal compiler and Joy's ex line editor. Other versions followed and we find the many branches of BSD today.

The copyright, itself, is used by other open source software as well. The most common license in use is the 3 clause BDS license. It follows….

BSD 3 clause License

Copyright © <year>, <copyright holder> All rights reserved.

Redistribution and use in source and binary forms, with or without modification, are permitted provided that the following conditions are met:

   * Redistributions of source code must retain the above copyright
     notice, this list of conditions and the following disclaimer.
   * Redistributions in binary form must reproduce the above copyright
     notice, this list of conditions and the following disclaimer in the
     documentation and/or other materials provided with the distribution.
   * Neither the name of the  nor the
     names of its contributors may be used to endorse or promote products
     derived from this software without specific prior written permission.

THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS “AS IS” AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL <COPYRIGHT HOLDER> BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

Further Reading

A full history and explanation of its various forms can be found via:

http://en.wikipedia.org/wiki/BSD


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