What has OS X got to do with Unix?

( Mornington Crescent Come the Envolution ..., Fri 5 Sep 2003, 14:26, archived)

Hmmm...
My sarcasm detector is busted.

In case you're being serious:
www.apple.com/macosx/technologies/darwin.html
( matsimpsk, Fri 5 Sep 2003, 14:43, archived)