MacOS X is *NOT* the first Unix based Operating System for Apple Macintosh's (derived from simplephpblog file blog\content\12\06\entry120602-190000.txt)
Recently I have seen some pictures from A/UX ... a UNIX OS running on - at least - 68030 Macintosh's, according to this >>A/UX Compatibility List<< from Apple itself.
Some screenshots:

and

also

and

So Apple had much earlier a working Unix *with* graphical user interface !
And the best - you can still download it, if you know for what filename you have to search.
Just search for AUX_3.0.1_Install_Boot_Disk.diskcopy_image.bin ...
P.S.: Or visit *this* ftp-site or *this* http-site.
Some for A/UX compiled programs can be found also here: http://www.nleymann.de/appleAUX/
Hints/Help for A/UX installation and multi-boot can be found here: http://www.floodgap.com/retrotech/os/aux/
Added later: http://www.aux-penelope.com/ has also some very interesting article entries about all three A/UX versions.
Update: Meanwhile the site seems to be offline. Use THIS entry from archive.org
Recommended !
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