20 Sep
2006
20 Sep
'06
7:08 a.m.
Subject: CP/M for Fairchild F8 : resolved.
From: Jos Dreesen / Marian Capel <jos.mar at bluewin.ch>
Date: Tue, 19 Sep 2006 20:03:24 +0200
To: General Discussion: On-Topic and Off-Topic Posts <cctalk at
classiccmp.org>
I asked around and, as many posters suspected, the box was part of a
larger system : A Sentry IC tester, made by Fairchild. That would
explain the use of the F8.
The row of DRAMs I thought to have seen was, at closer inspection, a set
of bipolar PROMs. Total real ram on the board : 4 x 2114. So no CP/M for
sure....
Still, I have never before seen a floppybox with printeroutput !
The CP/M disks (SSSD) are therefore most probably from another, unknown
system.
I'd bet they are from an old Intel MDS800 development system [big blue box].
They ran ISIS but CP/M was ported to them as the first system and standard
distrubution CP/M for years after had the MDS800 bios in the text
(CP/M alteration guide).
Allison
20 Sep
20 Sep
10:19 a.m.
On 9/20/2006 at 10:08 AM Allison wrote:
I'd bet they are from an old Intel MDS800
development system [big blue
box].
They ran ISIS but CP/M was ported to them as the first system and standard
distrubution CP/M for years after had the MDS800 bios
in the text
(CP/M alteration guide).
Actually, those 8" disks could be from any number of several CP/M systems.
A dump of a system disk will sort that one out.
DRI even distributed MP/M (in its OEM package) as hosted on an MDS-800.
Sort of minimal (MP/M was intended for systems with more than one terminal
and bankswitching memory), but made possible by the 8253 timer periodic
interrupt.
Cheers,
Chuck
6669
days inactive
6669
days old
1 comments
2 participants
participants (2)
-
ajp166＠bellatlantic.net -
cclist＠sydex.com