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Date:      Tue, 7 Nov 2000 11:29:20 -0800
From:      "Heredity Choice" <stork@QNET.COM>
To:        "Anthony Rubin" <tonyr@generalsearch.net>, "Per Tore Larsen" <per.tore.larsen@fernonorden.com>, "'freebsd-questions@freebsd.org'" <freebsd-questions@FreeBSD.ORG>
Subject:   RE: MacOS, not based on the Freebsd kernel?
Message-ID:  <005d01c048f1$068e9660$a8c6ddd1@STORK>
In-Reply-To: <00110712243304.00384@tonyr.office.generalsearch.net>

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> "Rebuilding the kernel would not be too difficult because Mac
> OS X is built
> on the same Mach kernel that NeXT used," he said. NeXT Software Inc.'s
> OpenStep operating system ran on x86 hardware."

I believe NeXT used the Mach 2.5, while OS X uses Mach 3.0.

There was a company in Berkeley called Xinu (UNIX spelt backwards), which
offered BSD running on either Mach 2.5 or 3.0.  They had real problems with
Mach 3.0.  I am sure Apple has overcome these.

NeXT was really loved by those who used it, and OS X appears to be an update
of NeXT.

Paul Smith



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