Max OS X and BSD

Freddie Cash fcash-ml at
Fri Apr 9 13:08:33 PDT 2004

> On Thursday 08 April 2004 08:47 pm, John Von Essen wrote:
>> I was under the impression that OS X was a derivative of OPENSTEP -
>> which means from a kernel standpoint it is NOT BSD and NOT System V,
>> rather it is a MACH kernel (which sort of is a BSD kernel
>> derivative).

A really nice breakdown of MacOS X can be found at:

That should clear up most of your questions.  :)

Freddie Cash
fcash-ml at

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