28 Dec
2003
28 Dec
'03
3:31 p.m.
Congrats on the new toy Jay... that is not too dirty... in Arizona here it
is warm enough we just take 'em out in the sun and hose them out and let
the sun bake them for a while and.... DONE!
8k probably did not support a disc operating system,. they probably loaded
up a single dedicated program and tested away with it.
ed!
----- Original Message -----
From: "Jay West" <jwest(a)classiccmp.org>
To: "General Discussion: On-Topic and Off-Topic Posts"
<cctalk(a)classiccmp.org>
Sent: Sunday, December 28, 2003 6:00 PM
Subject: Re: 11/45 pictures & questions (cleaning question too)
Zane wrote...
some
Do you know anything about the history of this
system? Based on the odd
collection of flipchips and such that you mention and the
fact that it's
only got 8k of RAM, I'm guessing that it was used as some sort of
intelligent industrial controller.
Yup, airforce or navy, forget what the previous owner said. Definitely type of testbed or process control or automated
testing yada yada yada
> With only 8k of RAM I'm not sure you can run anything other than the
PTOS
(Papertape OS). I'm not sure if DOS/Batch would
fit on a 8k system as
I've
not messed with it. I'm fairly sure the RAM
boards in your /44 won't work
in a /45. Once you get a decent amount of RAM in the system I'd recommend
RSTS/E for an OS (it seems the most appropriate to me), and failing that
either RSX-11M/M+ or RT-11.
Oh no, I didn't strive so long for a /45 to have it run PTOS (no paper
tape
reader for it anyways). Unix is my preference for
this, failing that,
RSTS.
But my inability to find semiconductor memory and the
segmentation boards
may dictate otherwise. We'll see. This will be a very fun project. Maybe
I'll put it ahead of my 8E restoration and my 11/44 restoration :)
Hey... this machine, like some of the others I've worked on, has some very
large bundles of wiring that are virtually impossible to clean when dirt
is
caked into them. Anyone found a good way to degrease
and get the dirt off
wiring harnesses? My methods clean the surface but seem to mainly drive
the
grit inbetween the wires making up the bundle. Anyone
have a trick to
this?
Jay