# Berkeley Software Distribution

> Unix operating system

**Wikidata**: [Q34264](https://www.wikidata.org/wiki/Q34264)  
**Wikipedia**: [English](https://en.wikipedia.org/wiki/Berkeley_Software_Distribution)  
**Source**: https://4ort.xyz/entity/berkeley-software-distribution


## References

1. [Source](http://bxr.su/f/share/misc/bsd-family-tree)
2. [Source](https://netbsd.org/about/history.html)
3. [Source](https://www.oreilly.com/openbook/opensources/book/kirkmck.html_original)
4. Freebase Data Dumps. 2013
5. Quora