Phil Budne wrote:
> From: Lyle Bickley via cctalk
>>
>> I contacted Peter Samson regarding a "SC-4" and this was his response:
>> "There was an SC-40 (made after my time there) which was a fast
>> PDP-10-compatible system. I don’t know of any SC-4 though."
>
> The document that raised the question
Bring it. Bring them all.
On Tue, Feb 16, 2021 at 10:41 PM Ethan O'Toole via cctalk <
cctalk@classiccmp.org> wrote:
>
> Have you checked archive.org? The one site on the internet that didn't
> whine about posting CD ISOs of a long dead operating system (kudos to
> them!)
>
> If they don't have th
Have you checked archive.org? The one site on the internet that didn't
whine about posting CD ISOs of a long dead operating system (kudos to
them!)
If they don't have the ones you have, don't forget to submit them if you
would :-)
- Ethan
Curious if anyone on here knows if the c
> On Tue, Feb 16, 2021 at 2:36 AM Fritz Mueller via cctalk
> wrote:
> So you could set up on t4 or t5 of that microinstruction with the KM11...
> On Feb 16, 2021, at 11:08 AM, Josh Dersch wrote:
> I can't, though -- all of this stuff works fine when running slowly :)
Oh right -- I keep forgett
> > From: Lars Brinkhoff
> > > Anyone ever heard of the Systems Concepts SC-4 computer?
> Noel Chiappa via cctalk wrote:
> > Given the SF address, and Peter Samson's signature, this is the _the_
> > Systems
> > Concepts. Never heard of the SC-4, though.
> >
> > One oddity: the cover l
Curious if anyone on here knows if the contents of any of the earlier
IndiZone CDs from SGI are posted? A copy of IndiZone3 came with my copy
of IRIX 6.2 a number of years ago, and while the games aren't the sort
that would impress a modern XBox user I thought they were kind of neat
and showed off
Or Sugano Electric Laboratory, aka SEL
On Tue, Feb 16, 2021, 2:55 AM Christian Corti via cctalk <
cctalk@classiccmp.org> wrote:
> On Mon, 15 Feb 2021, Eric Moore wrote:
> > Yes, SEL was referred to as systems, but like I said that PDF does not
> seem
>
> I still have problems seeing SEL referred
> On Feb 16, 2021, at 2:38 PM, Mattis Lind via cctalk
> wrote:
>
> ...
> What is interesting is that it had variable record length. It was specified
> during the format process which tracks had what number of records and their
> size. The first track always had 40 bytes record since it was th
Den tis 16 feb. 2021 kl 19:04 skrev Chuck Guzis via cctalk <
cctalk@classiccmp.org>:
> Building floppy controllers from MSI TTL was not uncommon, even after
> the debut of the WDC LSI chips, which were initially very expensive.
>
I got information from a person that worked for Q1 reseller in Denm
On Tue, Feb 16, 2021 at 2:36 AM Fritz Mueller via cctalk <
cctalk@classiccmp.org> wrote:
>
>
> > On Feb 16, 2021, at 1:13 AM, Josh Dersch wrote:
> > My money's on t5 going wrong -- an ALU input mux or operation being
> selected incorrectly, possibly. This also somewhat explains why execution
> d
I think by 75 we at DEC hwe had at least two pin compatible source for
UART, While CHester G Bell gets credit for the design, my memory is
that Vince Bastiani did the design. That set the stage for having the
Synchronus /Isochronous chips built too. Signetics was contracted to
do the 2652 based on
Building floppy controllers from MSI TTL was not uncommon, even after
the debut of the WDC LSI chips, which were initially very expensive.
Even the bit ordering on some of the early controllers wasn't settled.
You can see LSB-first and MSB-first encoded floppies, GCR, MMFM, hard-
and soft-sector i
Lyle Bickley wrote:
> I contacted Peter Samson regarding a "SC-4" and this was his response:
>
> "There was an SC-40 (made after my time there) which was a fast
> PDP-10-compatible system. I don’t know of any SC-4 though."
Thanks for asking! I'm turning next to Fred Wright, another former
Systems
YEs, SEL purchased by Gould, was Systems Engineering Labs - Their
early systems were interesting in the way the I/O bandwidth was much
highter than the compute capability. Perfect machine for data
collection, and they were sold to many labs. THis continued with their
first 32 bit machines. Later,
> On Feb 16, 2021, at 1:13 AM, Josh Dersch wrote:
> My money's on t5 going wrong -- an ALU input mux or operation being selected
> incorrectly, possibly. This also somewhat explains why execution doesn't
> trap due to executing a HALT from an odd address -- it isn't actually
> executing fro
Den tis 16 feb. 2021 kl 03:16 skrev Fred Cisin via cctalk <
cctalk@classiccmp.org>:
> Thanks for the brochure.
> That looks like a fascinating project!
> Computerworld mentioned it occasionally in 1980.
>
>
> I love that "Pl/1 will soon emerge as the dominant language of
> microcomputers"
>
>
> If
On Mon, Feb 15, 2021 at 8:01 PM Fritz Mueller via cctalk <
cctalk@classiccmp.org> wrote:
> Hi Josh,
>
> In the situation you describe, I guess I would first chip clip '174s for a
> slice of both PCA and PBC on the LA, run the troublesome instruction
> sequence, and look at the trace. Check that C
On Mon, 15 Feb 2021, Eric Moore wrote:
Yes, SEL was referred to as systems, but like I said that PDF does not seem
I still have problems seeing SEL referred to as something different as
"Standard Elektrik Lorenz" (later part of ITT) who made for example the
ER56...
Christian
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