Linux isn't a certified Unix system, and some say it definitely isn't Unix. The key question for a business is if a commercial Unix flavor is enough like Linux that you can make an easy transition ...

Setting aside legal issues afflicting the word, Unix is neither a brand nor a particular product: it is a set of ideas - implemented differently by the people behind Linux, the BSDs and Solaris, ...

Unix is a trademarked name used for marketing purposes. Beyond that there are just the obvious technical differences. There is no need or push for linux to become a "true" unix since that is just ...

Sure, Linux is popular, but fans of the OpenBSD operating system think they've got something better.

Linux is more comfortable but isn’t likely to run on a Z80. Or is it? Linux borrows from Unix and back in the 1980s [Doug Braun] wrote a Unix-like OS for the Z80 called UZI.