Yesterday a visitor in our museum told me, that they used a PL/M
compiler on their Wang 600 at the highschool in the mid-70ies.
First I couldn't believe this, but he had some handwritten
(typwriter) documention about this system.
I scanned the papers and put them on our ftp-server:
ftp.informati
On Fri, 22 Mar 2019, Mike Stein via cctalk wrote:
- Original Message -
From: "Glen Slick via cctalk"
To: "General Discussion: On-Topic and Off-Topic Posts"
Sent: Friday, March 22, 2019 1:28 PM
Subject: Re: What 6502 macro assembler was used for the AIM-65 Monitor ROM?
On Fri, Mar
On Tue, 30 Oct 2018, Brent Hilpert via cctalk wrote:
If you haven't tried it already, a good exercising with contactr
cleaner (stay away from the stuff with oil in it) or isoprop will often
clear up excessive contact bounce on old switches. Getting contact
May be, but this would only solve o
Is there anybody out with a working classic PDP-8?
For a long time we had the problem, that starting a program on our 8 by
pressing keys, this program crashed. Examining the memory
contents showed, that typically one or two words short behind the starting
adress after such a crash had inadve
ev_en/icl1501/icl1501.html
looks like these are a bit more than terminals
Indeed, the 1501s are real computers, built by a firm called "Cogar". At
the end of our page about the ICL1501 is a link to the technical
information: schematics and programmers manual.
Klemens
--
klem
he coating.
Klemens
(p.s.: got the book, an interesting lecture)
--
klemens krause
Stuttgarter KompetenzZentrum fyr Minimal- & Retrocomputing.
http://computermuseum.informatik.uni-stuttgart.de
On Wed, 4 Jan 2017, Al Kossow wrote:
On 1/4/17 7:03 AM, Klemens Krause wrote:
We have a second LGP-30 drum in our museum. It is damaged by water.
...
In doing some disk research recently, I came across a footnote for a rather
unlikely
place to find information on magnetic coatings
here is another guy here in germany, who has a LGP-30 with heavily
corroded drum. That would be certainly interesting for him.
Klemens
--
klemens krause
Stuttgarter KompetenzZentrum fyr Minimal- & Retrocomputing.
http://computermuseum.informatik.uni-stuttgart.de
on.
If you lift all the head bars 1 or 2 mm, then the drum can
rotate even with this fake.
Klemens
Any input is welcome. -C
--
klemens krause
Stuttgarter KompetenzZentrum fyr Minimal- & Retrocomputing.
http://computermuseum.informatik.uni-stuttgart.de
set, and 50% link is not set both
versions have identical speed, but one constant is eliminated.
Doug Ingraham
PDP-8 SN 1175
Klemens
PDP-8 SN 768
--
klemens krause
Stuttgarter KompetenzZentrum fyr Minimal- & Retrocomputing.
http://computermuseum.informatik.uni-stuttgart.de
hat does this
key do? If I remember right, it's a kind of debug-key. I believe it
shifts the whole register including exponent and signs digit by digit
to the left.
Klemens
--
klemens krause
Stuttgarter KompetenzZentrum fyr Minimal- & Retrocomputing.
http://computermuseum.informatik.uni-stuttgart.de
0077 exists in
the other code.
Klemens
--
klemens krause
Stuttgarter KompetenzZentrum fyr Minimal- & Retrocomputing.
http://computermuseum.informatik.uni-stuttgart.de
too. I also had to replace the MQLs with CLAs.
Next step is to modify the output, to run it with a teletype...
Klemens
--
klemens krause
Stuttgarter KompetenzZentrum fyr Minimal- & Retrocomputing.
http://computermuseum.informatik.uni-stuttgart.de
-4 Users Manual" (Feb. 1973, Rev. 4). It contains
some coding examples (16 digit addition, BCD to binary conversion, A-D-
converter)
Klemens
--
klemens krause
Stuttgarter KompetenzZentrum fyr Minimal- & Retrocomputing.
http://computermuseum.informatik.uni-stuttgart.de
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