[Rare systems]

From: Allison J Parent <allisonp_at_world.std.com>
Date: Sun May 17 14:00:24 1998

<which was the first UNIX port to a non-DEC machine? I seem to recall bot
<UNIX and C were spawned around 1968 or so, but the first UNIX micro

By 1978 it had been ported to Interdata 8/32, Honeywell 6000 and IBM
System/370. This information was obtained from the preface of
"The C programming language" Kernighan and Ritchie.

There is no question in my mind that Unix (and flavors) is the most widely
ported(to different platforms) OS of them all. CPM is likely a close
second as most widely implemented on platforms with similar CPU but often
radically different IO. The reason I added this is like unix, CPM ran on
8080 (z80, z180, z280, NSC800), 8086 (8088, 80186...) and 68000. UCSD
Pascal P-system is the only other that was ported to non similar CPUs
like 8080/z80, PDP-11, 6502 (Apple][), wd microengine.


Allison
Received on Sun May 17 1998 - 14:00:24 BST