Hi,
I have been lurking for a few years, but thought I'd finally speak up
as I just received a 9 track tape purportedly containing the source
code to Schoonschip (https://en.wikipedia.org/wiki/Schoonschip). This
is a 2400' reel recorded at 1600 bpi based on the labels, and a
cursory examination s
There's a small discussion on S100computers about the terms 'skew' and
'interleave'.
In CP/M documentation 'skew' refers to what's usually called interleave
these days, i.e. offsetting sectors on a track to compensate for the fact
that by the time the computer has processed a given sector the next
> On Jul 29, 2021, at 12:46 PM, Chuck Guzis via cctalk
> wrote:
>
> A link I forgot to include that gives a flavor of how the tapes are used:
>
> https://files.eric.ed.gov/fulltext/ED112083.pdf
>
> Curious thing is that was no take-up reel on the MT/ST; the 100 feet of
> tape simply was ejec
On Fri, 30 Jul 2021, Mike Stein via cctalk wrote:
There's a small discussion on S100computers about the terms 'skew' and
'interleave'.
In CP/M documentation 'skew' refers to what's usually called interleave
these days, i.e. offsetting sectors on a track to compensate for the fact
that by the time
On 7/30/21 2:35 PM, Mike Stein via cctalk wrote:
> There's a small discussion on S100computers about the terms 'skew' and
> 'interleave'.
>
> In CP/M documentation 'skew' refers to what's usually called interleave
> these days, i.e. offsetting sectors on a track to compensate for the fact
> that b
On 7/30/21 3:56 PM, Cory Heisterkamp via cctalk wrote:
> With all of the pet projects documented on the net (ranging from the esoteric
> to the absurd) it’s interesting that no one has tackled this one yet. -C
Not really--it's very old technology, (1964), of limited capacity (about
20 KB per tap
On Fri, 30 Jul 2021, Chuck Guzis via cctalk wrote:
Not really--it's very old technology, (1964), of limited capacity (about
20 KB per tape), was a hideously expensive way to buy a typewriter
(about USD$7000 in 1964, or about USD$61,000 today), used almost
exclusively in large corporate offices to
On 7/30/21 4:36 PM, Fred Cisin via cctalk wrote:
> Well, form letters are "important".
> But, once microcomputer word processing matured, they could be done
> easily and much better.
>
> An acquaintance was working on creating an emulation of the MT/ST, as a
> way for those who were familiar with
> On Jul 30, 2021, at 5:35 PM, Mike Stein via cctalk
> wrote:
>
> There's a small discussion on S100computers about the terms 'skew' and
> 'interleave'.
>
> In CP/M documentation 'skew' refers to what's usually called interleave
> these days, i.e. offsetting sectors on a track to compensate
Yep.
And, it was not appreciated when I suggested an interim release between
the MT/ST emulator and "Full-ST" to be called "Half Full ST"
On Fri, 30 Jul 2021, grif...@mindspring.com wrote:
Scope Creep.. no telling how many projects died in stalled development.
On Jul 30, 2021 16:36, Fred C
Same here.
I've spent many happy hours in 'the good old days' adjusting 'interleave'
of ST512/406 MFM hard disks to find the optimum setting for a particular
system/controller but had never even heard the term 'skew' until 5 or 6
years ago while playing with odd format diskettes, and then it was i
On 2021-07-30 9:39 p.m., Chuck Guzis via cctalk wrote:
One of the shortcomings of the MT/ST when compared to word processors is
the lack of a good "mailmerge" option. You could code a stop code on
the tape, where the typewriter would allow for manual fill-in-the-blanks
operation, but that ge
And here I've always thought of you as a pessimist who would have called it
'Half Empty ST'...
On Fri, Jul 30, 2021 at 9:17 PM Fred Cisin via cctalk
wrote:
> Yep.
>
> And, it was not appreciated when I suggested an interim release between
> the MT/ST emulator and "Full-ST" to be called "Half Ful
I would think that an engineer would realize that the glass is neither
half-full NOR half-empty; it is merely that the glass was spec'ed with the
wrong size.
Yes, I am too cynical to be in marketing.
On Fri, 30 Jul 2021, Mike Stein wrote:
And here I've always thought of you as a pessimist
On 7/30/21 6:22 PM, Paul Berger via cctalk wrote:
> The MT/ST did pretty good for being a electro-mechanical device,all the
> logic was relays in it. I seem to recall many years ago one of the old
> OP guys telling me that it write in stripes across the tape. It would
> have to be some very simpl
The A/C is in and running! Tomorrow and Sunday we reassemble the
exhibit floor and clean up the mess, just in time for the 60-person
group tour on Monday.
--
Dave McGuire, AK4HZ
New Kensington, PA
Thanks to all who contributed to the new A/C!
That is fantastic, so fast to get it done.
B
On Sat, Jul 31, 2021 at 12:32 AM Mike Loewen via cctalk <
cctalk@classiccmp.org> wrote:
>
>The A/C is in and running! Tomorrow and Sunday we reassemble the
> exhibit floor and clean up the mess, just in time for the 60-person
> group tour on Monda
As some here know, I collect some dusty deck fortran graphics. We have
MOVIE.BYU up and running! (Thanks Douglas Taylor and Emanuel Steibler).
Ian built AMD 2901 bit slice hardware to run his graphics, it was called
SuperSet, and was very quick for the 1980s. Architecture was 48 bit, A=B op C,
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