17 Mar
2022
17 Mar
'22
10:04 a.m.
My fathers office was in the same building as IBM in Harrison, NY in the
70's.? I was able to play with a 5110 when I visited his office.
I would love to get my hands on one but I can't afford it with the
PDP-8/E money pit that I have ?.
On 3/17/2022 11:26 AM, Brent Hilpert via cctalk wrote:
Does anyone have or know whether the schematics for
the IBM 5110 or 5100 are available?
And the tightly related question of whether anyone has done ROM (ROS) dumps?
There are some service manuals on bitsavers, they are field-service board-level manuals,
mostly step-by-step problem resolution guides, no schematics.
As a system, it's small enough to be reverse-engineered, in that regard it's
tractable. However, it's implemented using IBM's mid-70s PCB and IC technology,
increasing an RE effort by a couple orders of magnitude if not approaching impossible,
unless one were to develop some robotic probing system and software.
There was a 5110 on ebay, non-working, that a friend had some interest in. It was quite a
gamble at the price, in the absence of real tech info. ... Apparently it's been
delisted, so my question is just curiousity at this point.