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Date:      Sat, 20 Aug 2011 22:46:09 -0400
From:      Daniel Staal <DStaal@usa.net>
To:        freebsd-questions@freebsd.org
Subject:   RE: A quality operating system
Message-ID:  <F0200A1CFD8384CAC82DC9A4@mac-pro.magehandbook.com>
In-Reply-To: <27081124F1EC4790981778923D271F59@harwood>
References:  <CAC1X_0bP8SeyqMaR68AQPMzT+r-isv4h0bJPdtaF3377bQ+ajQ@mail.gmail.com> <CAJ5UdcMDTVO2-zmiimSp60tFLtpiR7Dcd8kqvbzKQXS7OsLMPA@mail.gmail.com> <27081124F1EC4790981778923D271F59@harwood>

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--As of August 20, 2011 7:01:07 PM -0700, Carl G Smith is alleged to have 
said:

> I have heard that the OS X OS is based on FreeBSD. Is this true?

--As for the rest, it is mine.

Partially.  It combines a mostly Mach kernel with some FreeBSD-derived 
userland and interfaces, then adds a proprietary window manager and UI on 
top of the rest.

So the largest single source of code is probably FreeBSD, but neither the 
kernel or the part most people interact with isn't.

Daniel T. Staal

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