11 Dec
2000
11 Dec
'00
5:57 a.m.
In a message dated 12/10/2000 8:49:23 PM Eastern
Standard Time,
ajp166(a)bellatlantic.net writes:
I have a ZFA-161 which was an 8088 luggable. Passive backplane
and 2 cool pop-up floppies on top.I think the Z-100 models only
went up to m.150 altho you could put a Z80 card in the PCs. Don't
know how you would switch systems with both cards installed.
They had a nice built-in monitor system which was accessed by
control,alt,ins on startup.
The Nec V30 and V40 were common upgrades and I've heard
they would accept a hardcard. If it could be upgraded to a 286 or
higher with a processer complex that would be neat.
Reminds you of the IBM PS/2s with the processors on a card
(m.90-95's) that IBM calls planars as they did the earlier PS/2
mother-boards, altho the backplane is considerably more complex.
(non-passive backplane ?)
ciao larry
Reply to:
lgwalker(a)look.ca
ST225 is a good one, the 251 and 4096 were junk.
The ST251
was far to hot running to survive unless cooled with great effort.
Well, at least one survives:
Last week a frantic woman brought a Zenith Data Systems DOS-based PC
into our shop. It wouldn't boot and she was in desperate need of
retrieving some 1-2-3 files from the drive -- an ST251. Turns out the
system battery had died, and once replaced we were able to get the
system going and the drive looked healthy (as healthy as a Seagate MFM
drive ever looks).
Since it was in and out of the shop so quickly we didn't get much of a
chance to check out the system (Z200? S200?) but it looked as if the
mainboard was pretty much just a backplane, with the 10MHz AMD 286 CPU
on an ISA card.
Anyone familiar with this beast? It looked pretty cool. Could cards
with faster CPUs be installed in place of the 286 card?
Glen Goodwin
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