I'm probing two DB25 connectors on the old IBM 5110 to figure out how to
programmatically jiggle some pins and get some serial IO going.I've
been working on writing a terminal emulator in its PALM machine code (now
that we have an excellent assembler for it) - I may go lazy and just have
it
That is the social media alternative to Twitter. It is called Mastodon. It is a
decentralized network. More info is at
https://techcrunch.com/2022/11/08/what-is-mastodon/
Regards,
Tarek Hoteit
> On Mar 13, 2023, at 8:30 PM, Adrian Stoness via cctalk
> wrote:
>
> what site is that?
>
>> On
what site is that?
On Mon, Mar 13, 2023 at 6:17 PM Tarek Hoteit via cctalk <
cctalk@classiccmp.org> wrote:
> Oh yes it is so cool. We were talking about it with its owner IceBreaker
> on Mastodon https://mastodon.social/@particlesbbs/10730168329945
>
> Regards,
> Tarek Hoteit
>
> > On Mar
There are some nice mixed signal oscilloscopes made by Rigol (Chinese) at a
very affordable price. They have a very deep capture buffer for both analog
and digital signals. The build quality and capabilities of the MSO1104Z I
have are outstanding. I got all the options included for free as a
I completely agree about the Saleae devices. Very good software, nicely
made hardware. They're not cheap though, and only go up to 16 channels.
You can capture 16 channels with the very cheap Cypress FX2 dev boards (the
older Saleae devices were pretty much that).
I'd like to find a convenient
On 3/13/2023 8:12 PM, Paul Koning via cctalk wrote:
Gents,
I've been doing logic debugging (on a fairly primitive software defined radio I
designed back in 1999) with an old Philips logic analyzer. It's not bad,
certainly fast enough (I need 100 Msamples/s, it can do twice that) and it's
Gents,
I've been doing logic debugging (on a fairly primitive software defined radio I
designed back in 1999) with an old Philips logic analyzer. It's not bad,
certainly fast enough (I need 100 Msamples/s, it can do twice that) and it's
more than wide enough (I need 32 channels). But its
I attended the Vintage Computer Faire at the Computer History Museum many a
yr. ago. The museum wasn't opened yet then collecting many computer
artifacts including the Cray-1. I also met Steve Wozniak who gladdened the
heart of this Canadian nerd/geek/computer enthusiast. I'm looking forward
to
It was thus said that the Great Tarek Hoteit via cctalk once stated:
> The latest issue of Mad Magazine (April 2023) is titled “MAD Takes Apart
> Technology”. The pages include reprints of past articles that relate to
> computers, such as “if computers are so brilliant” (Oct 1985), “13 things
>
On Mon, 13 Mar 2023, Tarek Hoteit via cctalk wrote:
The latest issue of Mad Magazine (April 2023) is titled “MAD Takes
Apart Technology”. The pages include reprints of past articles that
relate to computers, such as “if computers are so brilliant” (Oct
1985), “13 things you never want to hear
Oh yes it is so cool. We were talking about it with its owner IceBreaker on
Mastodon https://mastodon.social/@particlesbbs/10730168329945
Regards,
Tarek Hoteit
> On Mar 13, 2023, at 2:54 PM, Murray McCullough via cctalk
> wrote:
>
> Hi,
>
>
>
> Has anyone seen the latest on
The latest issue of Mad Magazine (April 2023) is titled “MAD Takes Apart
Technology”. The pages include reprints of past articles that relate to
computers, such as “if computers are so brilliant” (Oct 1985), “13 things you
never want to hear from a computer guy” (May 2005), various y2k, and
Oh yes, that's looking good :-)
Thank you very much Mattis!
BTW: Some years before I helped to repair and administering the east
german copy of an 11/780.. the Robotron RVS K1840.
The console Processor of this beast was an Robotron K1620, the slowest
PDP-11 ever made but it was enough to load the
Hi,
Has anyone seen the latest on ArsTECHNICA journal on Brian Green’s
“deluxe home vintage computer den”? Does it bring back many fond memories
of the 70s and 80s.
Happy computing.
Murray
On 3/13/23 14:00, Cameron Kaiser via cctalk wrote:
>> Was there any PLATO/NovaNet arrangements with Atari like
>> there was for Texas Instruments computers?
>
> Yes, though not exactly. The TI implementation was a true, full Micro-TUTOR
> runtime that ran Off-Line System lessons directly. Atari
> Was there any PLATO/NovaNet arrangements with Atari like
> there was for Texas Instruments computers?
Yes, though not exactly. The TI implementation was a true, full Micro-TUTOR
runtime that ran Off-Line System lessons directly. Atari had a PLATO cartridge
that could connect to a server via
> On Mar 8, 2023, at 7:25 AM, Bill Gunshannon via cctalk
> wrote:
>
>
> On 3/7/2023 8:30 PM, Dennis Boone via cctalk wrote:
>> > I’m working on a project, and I need to know the age of various tape
>> > formats. For example when were 6250bpi 700’ 9-Track tapes or DC600A
>> > cartridges
I truly appreciate all the suggestions that I received for my computer history
museum visit this coming Wednesday including the food options and the nearby
areas. Some notes about the “old Silicon Valley”, the limited food options, and
some nearby technology shops being gone is sad, but it is
The Silicon Valley of old is basically dead. The magic is gone.
The two suplus stores are gone (Halted and Weird Stuff Warehouse.) Only
thing I can think of that I would recommend is the Musee Mechanique over
in San Fran.
https://en.wikipedia.org/wiki/Mus%C3%A9e_M%C3%A9canique
For suplus
I visited CHM in early 2018. I actually didn't go to CHM proper, but
arranged with them to visit a warehouse nearby where they store a lot of
stuff they don't display.
I was able to see my "first personal computer" circa 1962. It was an
IBM 709, the last vacuum tube computer from IBM (I
That is a BA11-M box with a H780 supply. The schematics can be found in the
KC780 document since the front end processor of the 11/780 is a PDP-11/03
with a RX01 drive.
In the end of this document there is a schematic:
http://bitsavers.org/pdf/dec/vax/780/MP00534_KC780_Nov77.pdf
Good luck!
Hi all,
I have to repair an PSU of a 11/23 n a BA11 Box with an H9720 Backplane
(with an KDJ-11A) that has run an CNC milling machine until 2 weeks
before now. :-) This is a Fidia machine..never heard about it before.
The problem is that a big 19000µF 40V capacitor in the PSU has failed
and
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