[Ham-Mac] [linuxham] OS X hint

[Elwood C. Downey]

Thanks much for the added detail, I do stand corrected. I have many fond (if dim!)
memories of those heady days. I was so happy, but shocked, when Apple decided on UNIX
for OS X. In my view, they made the perfect match of a noble architecture with a clean
GUI.

73, Elwood, WB0OEW


> Date: Sat, 31 Jul 2010 12:09:10 -0700
> From: "Kristen A. McIntyre" <kristen at alum.mit.edu>
> Subject: Re: [Ham-Mac] [linuxham] OS X hint
> To: Mac enthusiasts involved in amateur radio applications
> 	<ham-mac at mailman.qth.net>
> Cc: "Kristen A. McIntyre" <kristen at alum.mit.edu>
> Message-ID: <51D869C4-7052-4F2C-9AC0-008F91A85CD7 at alum.mit.edu>
> Content-Type: text/plain; charset=us-ascii
>
> Regarding Mac OS X, it is not "real unix".  It is also a "work-alike," but of a
> different flavor (as are later releases of BSD).  OS X derives from Mach - a microkernel
> project done at CMU that was a 4.3 BSD work alike.  2BSD derives from 7th Edition, and
> 4BSD, Unix 32V, but all of the ATT dependencies were removed (read, made into a
> work-alike) for the 4.3 Tahoe release, followed by 4.3 Reno, so that it wouldn't be
> encumbered by strict ATT licensing issues - now carried on by what's left of SCO.
> FreeBSD, NetBSD, OpenBSD, etc. are all derived from 4.3 Reno, I believe.
>
> More history here:
>
> http://www.levenez.com/unix/unix_a4.pdf
>
> I was around for much of this, working at both Sun and Apple.