19 Feb
2018
19 Feb
'18
2:45 p.m.
From: Al Kossow
> On 2/18/18 12:20 PM, Brent Hilpert via cctalk
wrote:
> ... his 709 went to the CHM. Anything else of the
big stuff?
the 7094 and 650
A 7094? Neat! Very historic machine.
I wonder if it would be possible to fabricate the extras needed to run CTSS
on it... :-)
Noel
6:25 p.m.
On 02/19/2018 08:45 AM, Noel Chiappa via cctalk wrote:
Gotta have a LOT of space to house one of those!
Jon
From: Al
Kossow
> On 2/18/18 12:20 PM, Brent Hilpert via cctalk
wrote:
> ... his 709 went to the CHM. Anything else of
the big stuff?
the 7094 and 650
A 7094? Neat! Very historic machine.
20 Feb
20 Feb
3:26 a.m.
On 02/19/2018 02:26 PM, Chuck Guzis via cctalk wrote:
On 02/19/2018 11:48 AM, Al Kossow via cctalk wrote:
Yup. I don't know how much logic is in a 1401, but probably
in between 500 and 1000 SMS cards. Apparently, getting the
CHM 1401 running was a multi-year project. The 7094 has
11,000 SMS cards!!! Completely beyond comprehension. Given
the technology, I'm not sure how IBM kept these running when
NEW with a box of spare cards on site. And, given how my
uVAX-II deteriorated over only 21 years of use (biggest
problem was the backplane finger contacts slowly got
unreliable), I can't imagine what kind of HELL one would go
through with 11,000 circuit cards! Holy Moly!
Jon
Even more to bring one back on-line, which is why
it's impractical
to restore in the foreseeable future.
I can't even imagine the effort it would
take to get a 7090 or 7094
operating again using volunteer labor.
--Chuck
2505
days inactive
2506
days old
5 comments
4 participants
participants (4)
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