27 Oct
2022
27 Oct
'22
5:07 p.m.
Let me add that Howard Sturgis' dissertation "Post-mortem for a
Time-sharing System" is great reading. It's unusual that failures are
documented but this case study is worthy.
On Thu, Oct 27, 2022 at 1:00 PM <cctalk-request(a)classiccmp.org> wrote:
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1. Re: CAL TSS information and source listings (paul(a)mcjones.org)
2. ISO someone to refurbish two IBM 010 card punches (LJW cctech)
---------- Forwarded message ----------
From: paul(a)mcjones.org
To: cctalk(a)classiccmp.org
Cc:
Bcc:
Date: Thu, 27 Oct 2022 16:13:06 -0000
Subject: [cctalk] Re: CAL TSS information and source listings
Lars Brinkhoff wrote:
Paul McJones posted this recently:
https://mcjones.org/CalTSS/
There aren't a lot of machine readable media, but many listings:
https://mcjones.org/CalTSS/source/
I hesitated to post here -- was the CDC 6400 a classic computer? :-) --
but Lars broke the ice. The system ran on a 6400 with Extended Core Storage
and Central Exchange Jump (most of the operating system ran on the CPU,
counter to normal CDC 6000 practice). The project took place at UC Berkeley
between 1968 and 1971 (although hardware acquisition began in 1966). What
the university really wanted was simple interactive service (editing,
BASIC, remote job submission, etc.) in conjunction with batch jobs running
on SCOPE on the main, larger 6400, but what they got was a state-of-the-art
research system offering capability-based protection, multiple protection
domains per process, and more. Unfortunately, it couldn't support enough
concurrent users to be economical.
The technical ideas are well-described here:
Butler W. Lampson and Howard E. Sturgis. Reflections on an operating
system design. Communications of the ACM, 19(5):251-265, January 1976.
https://dl.acm.org/doi/abs/10.1145/360051.360074 (open access)
The project history is described here:
Paul McJones and Dave Redell. History of the CAL Timesharing System.
Submitted to: IEEE Annals of the History of Computing.
https://www.mcjones.org/CalTSS/paper/cal_tss_history.pdf
Through heroic effort, Terry Heidelberg has managed to create an emulation
environment and boot the system and run some programs, but it's not ready
for prime time!
Paul
---------- Forwarded message ----------
From: LJW cctech <ljw-cctech(a)ljw.me.uk>
To: cctalk(a)classiccmp.org
Cc:
Bcc:
Date: Thu, 27 Oct 2022 18:05:58 +0200
Subject: [cctalk] ISO someone to refurbish two IBM 010 card punches
Hello all,
Is there anyone out there that would be prepared to tackle restoring
a couple of IBM 010 card punches functionally and cosmetically?
This is a paying job!
These are the small tabletop units.
One is manual: https://flic.kr/p/2nVAJeg
The other is motorised: https://flic.kr/p/2nVB8Pa
They are apparently complete but will need cleaning, repainting and
adjusting, and whatever you can do with the key-tops.
The manual one was used by the current owner in 1962 so has some
sentimental value!
They are in the USA but we can get them to you wherever you are.
If you know of anyone who might be interested then feel free to
forward this email.
--
Lawrence Wilkinson lawrence(a)ljw.me.uk
The IBM 360/30 page http://www.ljw.me.uk/ibm360