BSD license

The BSD (Berkeley Software Distribution) license was the original license of the BSD variant of Unix, but is now better known as a general purpose FOSS license that does not contain any copyleft term.

Source
This page uses content from “Access to Knowledge: A Guide for Everyone,” Glossary (Frederick Norohna & Jeremy Malcolm 2010). This entry is available under the Creative Commons Attribution-Share Alike 3.0 License (CC-BY-SA).