That reel of 3 onch tape is heavy... Ihave a reel and the 30 something track
tape headgee I could rig a rrader ed#
Sent from AOL on Android
On Thu, Mar 9, 2023 at 11:16 PM, Chuck Guzis via cctalk
wrote:
I believe that this photo shows a Datamatic 1000 tape next to a standard1/2"
drive.
On 3/10/23 00:16, Chuck Guzis via cctalk wrote:
I believe that this photo shows a Datamatic 1000 tape next to a standard
1/2" drive.
https://i.pinimg.com/564x/00/3e/7d/003e7d4e3a2478db0b9a7c94f2033252.jpg
--Chuck
Hub size looks small on the 1/2" for later style tapes. 2" tape? I
wonder
Snip
On Mar 9, 2023, at 10:57 PM, John Maxwell via cctalk
wrote:
>>> On 3/9/23 10:16 AM, John Maxwell wrote:
>>> Nowhere do I see any mention of a Model 80 Reference Disk. If you
>>> don't have one of these, you will not be able to configure the machine.
>>
>
> Is there a repository to
Thats exactly the solution. Just keep a few floppies around so that you can
transfer a saved image back to floppy to be read by the machine that needs it.
Personally, there was so much media manufactured that I think the machines that
read the media will fail long before we run out of media.
Interesting article but when goteks are 30 a pop on ebay and work on something
as wonky as a professional 350, I think it's time to let 5.25 floppies go
I'll get a teac but mainly to convert all my pdp11 floppies to images.
Cz
On March 9, 2023 7:00:39 PM EST, Jim Brain via cctalk
wrote:
https://www.wired.com/story/why-the-floppy-disk-just-wont-die/
Take what you want from the article, but I thought the end paragraph,
noting that Tom Persky of floppydisk.com is 73 and is only planning to
handle things for 5 more years. After that, he thinks the company will
not transfer to
>On 3/9/23 10:16 AM, John Maxwell wrote:
>> Nowhere do I see any mention of a Model 80 Reference Disk. If you
>> don't have one of these, you will not be able to configure the machine.
>Yep. I'm well aware. This is not my 1st PS/2 rodeo. I actually cut my teeth
>on used PS/2s in the mid-90s.
The USB FDC controller ICs finally arrived and I am working to clear the
project desk to build a dev board. As part of testing, I'm wondering if
anyone has any working FD55B drives for sale with the HLS? I am the
market for 1-2 more, and I thought it'd be nice to get one for this
project
On 3/9/23 22:39, Lars Brinkhoff via cctalk wrote:
> Consider that a minicomputer is larger than microcomputer.
Consider the terms (now rarely seen): "midicomputer" and
"superminicomputer"
--Chuck
Steve Lewis wrote:
> I always considered a mainframe to basically be a "fully decked out"
> minicomputer.
You may find people will disagree with that. I'm not sure what
mainframe means either, but I'm asking around. Pysical size, I/O
capacity, CPU offload to front ends, and users served seem to
Fred Cisin wrote:
> So, what defines a "supercomputer"?
FLOPS
I believe that this photo shows a Datamatic 1000 tape next to a standard
1/2" drive.
https://i.pinimg.com/564x/00/3e/7d/003e7d4e3a2478db0b9a7c94f2033252.jpg
--Chuck
On 3/9/2023 10:34 PM, Fred Cisin via cctalk wrote:
I doubt that there is any market segment with deep pockets, with a
"need" other than nostalgia.
I've actually considered trying to research finding equipment to
manufacture such media, and/or recreating it. Everyone needs another
hobby,
We still have ice on the inside of the windows up here
Nice of you guys to remember this history. Some of the STAR designers and team
are still around and kicking. Just had lunch with four of them last Friday.
I learned too that as they migrated the design from STAR to 205 to ETA10, some
On 3/9/23 18:40, Sellam Abraham via cctalk wrote:
I wonder how much challenge would be involved in making artisan batches of
5.25" or 8" floppy disks using cobbled-together or homemade equipment?
On Thu, 9 Mar 2023, Chuck Guzis via cctalk wrote:
Many folks have turned to emulators, abandoning
On Thu, Mar 9, 2023 at 7:57 PM Fred Cisin via cctalk
wrote:
> On Thu, 9 Mar 2023, Sellam Abraham via cctalk wrote:
> > Jeri Ellsworth made integrated circuits in her garage.
> > I wonder how much challenge would be involved in making artisan batches
> of
> > 5.25" or 8" floppy disks using
On 3/9/23 18:40, Sellam Abraham via cctalk wrote:
> I wonder how much challenge would be involved in making artisan batches of
> 5.25" or 8" floppy disks using cobbled-together or homemade equipment?
Many folks have turned to emulators, abandoning the spinning rust
altogether.
The mylar
On Thu, 9 Mar 2023, Sellam Abraham via cctalk wrote:
Jeri Ellsworth made integrated circuits in her garage.
I wonder how much challenge would be involved in making artisan batches of
5.25" or 8" floppy disks using cobbled-together or homemade equipment?
In "Secret Life of Machines", season 2,
As to what a "station" looked like:
https://i.pinimg.com/originals/15/6d/fa/156dfa0a3b573b6ff9ca074d62fb19a9.jpg
Those things with CRT terminals on them are stations--they handle the
various I/O tasks. Basically, 16 bit minicomputers.
The photo might be the installation at CDC ADL, from the
Thanks!
Steve
On 3/9/23 7:54 PM, Chuck Guzis via cctalk wrote:
On 3/9/23 18:24, steve shumaker via cctalk wrote:
for the non mainframe folks here, what does SBU/SCU/SDU mean?
SBU-station buffer unit, but why not read about it in a contemporary
article by Chuck Purcell?
On Thu, 9 Mar 2023, Sellam Abraham via cctalk wrote:
Jeri Ellsworth made integrated circuits in her garage.
I wonder how much challenge would be involved in making artisan batches of
5.25" or 8" floppy disks using cobbled-together or homemade equipment?
Is there ANYTHING besides floppy disks
On 3/9/23 18:24, steve shumaker via cctalk wrote:
> for the non mainframe folks here, what does SBU/SCU/SDU mean?
SBU-station buffer unit, but why not read about it in a contemporary
article by Chuck Purcell?
https://dl.acm.org/doi/pdf/10.1145/1500175.1500257
--Chuck
On 3/9/23 17:56, Paul Koning wrote:
> That picture serves to remind us of the packaging and cooling genius that
> went into the CDC 6000 series machines, which could fairly be called the
> first supercomputers. Logic like that and more, but in a much smaller
> package so it can run faster. I
On Thu, Mar 9, 2023 at 4:34 PM Chuck Guzis via cctalk
wrote:
> On 3/9/23 16:00, Jim Brain via cctalk wrote:
> > https://www.wired.com/story/why-the-floppy-disk-just-wont-die/
> >
> > Take what you want from the article, but I thought the end paragraph,
> > noting that Tom Persky of
for the non mainframe folks here, what does SBU/SCU/SDU mean?
Steve
On 3/9/23 5:45 PM, Chuck Guzis via cctalk wrote:
On 3/9/23 17:33, Jon Elson via cctalk wrote:
On 3/9/23 15:51, Steve Lewis via cctalk wrote:
Well, the IBM 709x was housed in 11 or more cabinets that were larger
than the
On Thu, 9 Mar 2023, Paul Koning via cctalk wrote:
That picture serves to remind us of the packaging and cooling genius
that went into the CDC 6000 series machines, which could fairly be
called the first supercomputers. Logic like that and more, but in a
much smaller package so it can run
> On Mar 9, 2023, at 8:45 PM, Chuck Guzis via cctalk
> wrote:
>
> On 3/9/23 17:33, Jon Elson via cctalk wrote:
>> On 3/9/23 15:51, Steve Lewis via cctalk wrote:
>
>> Well, the IBM 709x was housed in 11 or more cabinets that were larger
>> than the largest home refrigerator. These cabinets
On 3/9/23 17:33, Jon Elson via cctalk wrote:
> On 3/9/23 15:51, Steve Lewis via cctalk wrote:
> Well, the IBM 709x was housed in 11 or more cabinets that were larger
> than the largest home refrigerator. These cabinets were interconnected
> by cables containing 100 coax cables and had one-foot
On 3/9/23 15:51, Steve Lewis via cctalk wrote:
Not to open a huge can of worms but...
I always considered a mainframe to basically be a "fully decked out"
minicomputer.
Well, the IBM 709x was housed in 11 or more cabinets that
were larger than the largest home refrigerator. These
On 3/9/23 16:00, Jim Brain via cctalk wrote:
> https://www.wired.com/story/why-the-floppy-disk-just-wont-die/
>
> Take what you want from the article, but I thought the end paragraph,
> noting that Tom Persky of floppydisk.com is 73 and is only planning to
> handle things for 5 more years. After
https://www.wired.com/story/why-the-floppy-disk-just-wont-die/
Take what you want from the article, but I thought the end paragraph,
noting that Tom Persky of floppydisk.com is 73 and is only planning to
handle things for 5 more years. After that, he thinks the company will
not transfer to
I just ordered your book from Amazon. I am looking forward to reading it.
Regards,
Tarek Hoteit
> On Mar 9, 2023, at 2:51 PM, Fred Cisin via cctalk
> wrote:
>
> On Mar 9, 2023, at 5:20 PM, Murray McCullough via cctalk
> wrote:
>>> A lot has been written about the origins of the
Speaking of pornography, the ad on page 14 of 80 Micro magazine August 1980
was a bit of a shocker.
https://archive.org/details/80-microcomputing-magazine-1980-08/page/n13/mode/2up
On Thu, Mar 9, 2023 at 5:40 PM Sellam Abraham via cctalk <
cctalk@classiccmp.org> wrote:
> On Thu, Mar 9, 2023 at
On Thu, Mar 9, 2023 at 2:18 PM Chuck Guzis via cctalk
wrote:
> On 3/9/23 13:51, Steve Lewis via cctalk wrote:
> >...
>
> Use the NYT definition of a minicomputer from 1970. "Costs less than
> $25,000" (in 1970 dollars).
>
> --Chuck
Like "vintage", or pornography, it's one of those things that
On Mar 9, 2023, at 5:20 PM, Murray McCullough via cctalk
wrote:
A lot has been written about the origins of the microcomputer. I wrote a
book on the topic. Many thanks for mentioning Canada. Whether one is
playing games or doing something else micro-computing is usually associated
with a
> On Mar 9, 2023, at 5:20 PM, Murray McCullough via cctalk
> wrote:
>
> A lot has been written about the origins of the microcomputer. I wrote a
> book on the topic. Many thanks for mentioning Canada. Whether one is
> playing games or doing something else micro-computing is usually
A lot has been written about the origins of the microcomputer. I wrote a
book on the topic. Many thanks for mentioning Canada. Whether one is
playing games or doing something else micro-computing is usually associated
with a microprocessor as CPU. Anything earlier is a minicomputer or
something
On 3/9/23 13:51, Steve Lewis via cctalk wrote:
>...
Use the NYT definition of a minicomputer from 1970. "Costs less than
$25,000" (in 1970 dollars).
--Chuck
On Thu, 9 Mar 2023, Steve Lewis via cctalk wrote:
Actually, to answer my own question: if "main frame" refers to the actual
framing... well the PDP-1, PDP-10, PDP-10 were minicomputers and still
required a lot of metal "framing" to set up. So, can't they be considered
mainframes?
(another
> On Mar 9, 2023, at 5:00 PM, Steve Lewis via cctalk
> wrote:
>
> Actually, to answer my own question: if "main frame" refers to the actual
> framing... well the PDP-1, PDP-10, PDP-10 were minicomputers and still
> required a lot of metal "framing" to set up. So, can't they be considered
>
> On Mar 9, 2023, at 4:51 PM, Steve Lewis via cctalk
> wrote:
>
> Not to open a huge can of worms but...
>
> I always considered a mainframe to basically be a "fully decked out"
> minicomputer.
>
> A minicomputer has a core CPU and memory (or racks of memory), then is
> "decked out"
This has been around the block:
You can lose a screw in a micro.
You can lose a screwdriver in a mini.
You can get lost in a mainframe.
--
personal: http://www.cameronkaiser.com/ --
Cameron Kaiser * Floodgap Systems * www.floodgap.com *
Actually, to answer my own question: if "main frame" refers to the actual
framing... well the PDP-1, PDP-10, PDP-10 were minicomputers and still
required a lot of metal "framing" to set up. So, can't they be considered
mainframes?
(another notion is that mainframes are "multi-user" -- most
Not to open a huge can of worms but...
I always considered a mainframe to basically be a "fully decked out"
minicomputer.
A minicomputer has a core CPU and memory (or racks of memory), then is
"decked out" with data storage (racks of wall-sized tape decks), printers,
pick-your-typewriter
I'll toss a couple of old IBM magtape variations out:
The IBM 728, used on SAGE. 7 track, but not your daddy's 7 track. 3
data tracks either side of a central clock track. Different from either
of the pre- and post-series drives (727 and 729) that we have grown to love.
And, of course, the
It has been a long-time (almost 40 years now) since I worked part-time at an
IBM dealer, BUT attended ALL the IBM hardware training (and later as an early
corporate PC center manager), including the wonderful OS/2 presentations.
I also selected that IBM model for my father’s business software,
Well thanks to ya'll prodding - I've brought it up to her again, and she
actually said "hmm, alright, maybe" ! Next week happens to be our spring
break - so. we might give it a shot !
So probably no final rendering this weekend - but hopefully by the end of
the month.
On Thu, Mar 9,
On 3/9/23 1:49 PM, Bill Degnan wrote:
I have worked on enough of these to not take chances. It's a pain if
you have to guess. If you can't get into the hard drive you can't read
the config.sys and autoexec.bat for clues, you can't run a diagnostics
as easily. So it's just conservative, my
On Thu, Mar 9, 2023 at 3:40 PM Grant Taylor via cctalk <
cctalk@classiccmp.org> wrote:
> On 3/9/23 1:03 PM, Bill Degnan wrote:
> > That's my point, at least try the system see if it works as is, but
> > assume the battery is just about dead if not completely. May have
> > enough juice for one or
On 3/9/23 1:03 PM, Bill Degnan wrote:
That's my point, at least try the system see if it works as is, but
assume the battery is just about dead if not completely. May have
enough juice for one or two more boots. so get the info out of it
you can.
I'm curious, what do you think /might/ be
On Thu, Mar 9, 2023 at 2:22 PM John Maxwell via cctalk <
cctalk@classiccmp.org> wrote:
> On 9-Mar-23 10h36. Grant Taylor wrote:
>
> >On 3/9/23 6:20 AM, Bill Degnan wrote:
> >> First and foremost, try to boot the computer to make note of the
> >> configuration, if there is one still stored in the
On 3/9/23 10:16 AM, John Maxwell wrote:
Nowhere do I see any mention of a Model 80 Reference Disk. If you don't
have one of these, you will not be able to configure the machine.
Yep. I'm well aware. This is not my 1st PS/2 rodeo. I actually cut my
teeth on used PS/2s in the mid-90s.
I
Most important of all, for the video,
your daughter should decide what parameters matter to her!
On Thu, 9 Mar 2023, Steve Lewis via cctalk wrote:
Sellam,
It seems to come down to agreement (or lack thereof) on the definition of
"personal computer".
One criteria to me is not so much
On Thu, 9 Mar 2023, Steve Lewis via cctalk wrote:
A third criteria is that it was built as a consumer product - meaning not
just a hand full exist. The rationale here is that it is a "repeatable
product" and the process of how the thing was made isn't so esoteric or
obscure (or enough
On 9-Mar-23 10h36. Grant Taylor wrote:
>On 3/9/23 6:20 AM, Bill Degnan wrote:
>> First and foremost, try to boot the computer to make note of the
>> configuration, if there is one still stored in the system.
Nowhere do I see any mention of a Model 80 Reference Disk. If you don't have
one of
On Thu, 9 Mar 2023, Sellam Abraham via cctalk wrote:
It seems to come down to agreement (or lack thereof) on the definition of
"personal computer".
Somehow I feel like this debate has been had before. Probably here.
Probably several times.
Sellam
It is a permanent topic.
Along with "First".
Sellam,
> It seems to come down to agreement (or lack thereof) on the definition of
> "personal computer".
One criteria to me is not so much about the machine/system itself, but on
how it is originally financed.
If it costs more than a house or has to be financed by a committee, then
it's not
On 2023-03-09 10:31 a.m., Bill Degnan via cctalk wrote:
No doubt it was capable of being operated by a single user, but that to me
does not make it a personal computer. The LGP-30 was used in schools and
offices not targeted for industrial use. There is really no reason why any
computer
It seems to come down to agreement (or lack thereof) on the definition of
"personal computer".
Somehow I feel like this debate has been had before. Probably here.
Probably several times.
Sellam
On Thu, Mar 9, 2023, 9:31 AM Bill Degnan via cctalk
wrote:
> >
> >
> >
> > > John,
> > > I have the
>
>
>
> > John,
> > I have the manuals for both systems. I don't get the impression that the
> > G-15 was sold as a "personal computer" in the same way as the Royal McBee
> > LGP-23/30 were. The Bendix has an analog computing aspect as well so
> it's
> > a different beast. I am sure people used
On 3/8/23 20:01, Bill Degnan via cctalk wrote:
On Wed, Mar 8, 2023 at 6:46 PM Jon Elson via cctalk
wrote:
On 3/8/23 14:31, Bill Degnan via cctalk wrote:
THe LGP-30 was to arguably the first personal electronic (non analog)
computer, my opinion, but it covers all of the bases as I see them.
On 3/9/23 6:20 AM, Bill Degnan wrote:
First and foremost, try to boot the computer to make note of the
configuration, if there is one still stored in the system.
Hum. That sort of surprises me. I naively assumed that there would be
some work that I should do before powering the system on to
> On Mar 8, 2023, at 10:11 PM, Brian L. Stuart via cctalk
> wrote:
>
> ...
> If you all are interested a different take on the origins of
> personal computing, here's a recording I made for use during
> the pandemic of a talk that I give every year to our freshmen
> at Drexel University.
>
>
> On Mar 8, 2023, at 10:23 PM, Chris Elmquist via cctalk
> wrote:
>
>
>
>> On Mar 8, 2023, at 4:18 PM, Chuck Guzis via cctalk
>> wrote:
>>
>> On 3/8/23 13:53, Sellam Abraham via cctalk wrote:
On Wed, Mar 8, 2023 at 1:39 PM Chuck Guzis via cctalk
wrote:
On
First and foremost, try to boot the computer to make note of the
configuration, if there is one still stored in the system. I don't expect
the battery to have held the config but there is always hope. Make
detailed notes if you're lucky enough to have the configs saved. Otherwise
get a new
On Thu, Mar 9, 2023 at 2:03 AM Tarek Hoteit via cctalk <
cctalk@classiccmp.org> wrote:
> :) it makes sense, Sellam, to inform her rather than she telling us, but
> again she and others her age are the future. She will do it her way just
> like we, at her age, did it our way. Funny: i just
On 3/8/2023 1:19 PM, Dave Wade G4UGM via cctalk wrote:
-Original Message-
From: Chuck Guzis via cctalk
Sent: Wednesday, March 8, 2023 6:08 PM
To: cctalk@classiccmp.org
Cc: Chuck Guzis
Subject: [cctalk] Re: Age of Tape Formats?
I think it remarkable in retrospect that the original
> On 03/09/2023 1:24 AM CST Steve Lewis via cctalk
> wrote:
>
>
> Thank you all for the notes (and feedback).
>
> The 1964 skit of Patty Duke using that Univac-422 - all the markings of a
> personal computer right there, no doubt. But dragging that into a home
> doesn't make it a home
Grumpy Ol' Fred ,
On the GENIAC -- thanks for sharing that! It has this "killer app" called
"Masculine–Feminine Testing Machine" Brilliant!
On Wed, Mar 8, 2023 at 2:41 PM Fred Cisin via cctalk
wrote:
> Since we are never going to completely agree on
> "First",
> "computer",
> "home
On 3/8/23 22:23, Chuck Guzis via cctalk wrote:
On 3/8/23 19:23, Chris Elmquist wrote:
Who can read them now? ;-)
I suppose that you could rig something up as a streaming rig, but the
metal was murder on heads; the Univservo I interposed a thin plastic
tape between the metal and the head.
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