> On Nov 13, 2022, at 9:09 AM, Paul Koning via cctalk
> wrote:
>
> [EXTERNAL EMAIL]
>
>
>
>> On Nov 12, 2022, at 1:08 PM, Anders Nelson via cctalk
>> wrote:
>>
>> I bet NN/AI would be helpful with data recovery - if we can model certain
>> common failure modes with those old drive heads
> On Nov 13, 2022, at 2:31 PM, Cameron Kaiser via cctalk
> wrote:
>
>> AI, not so clear. In my view, AI is a catch-all term for "software whose
>> properties are unknown and probably unknowable".
>
> Someone recently on Hacker News talked about the possibility of neural net
> models to
> AI, not so clear. In my view, AI is a catch-all term for "software whose
> properties are unknown and probably unknowable".
Someone recently on Hacker News talked about the possibility of neural net
models to translate code for other architectures. The best response to this
idea described it
IMHO, AI is bull
Martin
-Original Message-
From: Paul Koning via cctalk [mailto:cctalk@classiccmp.org]
Sent: 13 November 2022 15:10
To: cctalk@classiccmp.org
Cc: Paul Koning
Subject: [cctalk] Re: Inline Serial Device?
> On Nov 12, 2022, at 1:08 PM, Anders Nelson via cctalk
>
> On Nov 12, 2022, at 1:08 PM, Anders Nelson via cctalk
> wrote:
>
> I bet NN/AI would be helpful with data recovery - if we can model certain
> common failure modes with those old drive heads we could infer what the
> data should have been...
NN maybe, I need to understand those better. I
On Sun, Nov 13, 2022 at 9:54 AM Robin Downs via cctalk
wrote:
>
> Hi,
> Actually, I built exactly this many years ago (1990s) to operate a cash draw
> for dumb terminals on Unix systems, used on counters as point of sale
> devices...
>
> The existing solution used a processor, ram, rom, double
Hi,
Actually, I built exactly this many years ago (1990s) to operate a cash draw
for dumb terminals on Unix systems, used on counters as point of sale devices...
The existing solution used a processor, ram, rom, double sided board etc and
was too expensive, so I designed a replacement with a
On Sat, 12 Nov 2022, Peter Corlett wrote:
Farnell Nederland is quoting me ?1.06 (+21% VAT) for the cheapest brand of
A quick search reveals that a single NE555 costs 0.25 Euros at Reichelt,
*including* VAT. I'm sure they can be had much much cheaper in quantities.
Christian
On 11/12/22 17:23, Sellam Abraham via cctalk wrote:
> I recommend the DEADBEEF dish.
Are you certain that you don't mean EFBEADDE?
On the STAR, DEADBEEF was the dead code for a call to page and
un-pageable (i.e. kernel resident) page. There were other DEAD codes,
such as DEADCACA, etc. All of
On Sat, Nov 12, 2022 at 8:23 PM Sellam Abraham via cctalk
wrote:
> I recommend the DEADBEEF dish.
FEED FACE DEAD BEEF
-ethan
On 11/12/22 15:41, Glen Slick via cctalk wrote:
> I went to an Endian restaurant once. I was disappointed. I wanted
> something little, but everything on the menu was big.
In one, dessert comes first and finishes with salad.
I recommend the DEADBEEF dish.
Sellam
On Sat, Nov 12, 2022 at 4:41 PM Warner Losh via cctalk <
cctalk@classiccmp.org> wrote:
> On Sat, Nov 12, 2022, 4:41 PM Glen Slick via cctalk >
> wrote:
>
> > On Sat, Nov 12, 2022 at 12:36 PM Chuck Guzis via cctalk
> > wrote:
> > >
> > > On 11/12/22 11:56,
On Sat, Nov 12, 2022, 4:41 PM Glen Slick via cctalk
wrote:
> On Sat, Nov 12, 2022 at 12:36 PM Chuck Guzis via cctalk
> wrote:
> >
> > On 11/12/22 11:56, ben via cctalk wrote:
> > > On 2022-11-12 12:33 p.m., Chuck Guzis via cctalk wrote:
> >
> > > Watch out for Indians. :)
> > > Ben.
> >
> >
On Fri, Nov 11, 2022 at 4:46 PM Bill Gunshannon via cctalk
wrote:
> If they do it probably costs about $500. Blackbox is not the company
> they used to be.
That sounds like exactly the kind of company they used to be :P
I just wanted to mention that back when we did POS systems, we had
cash
On Sat, Nov 12, 2022 at 12:36 PM Chuck Guzis via cctalk
wrote:
>
> On 11/12/22 11:56, ben via cctalk wrote:
> > On 2022-11-12 12:33 p.m., Chuck Guzis via cctalk wrote:
>
> > Watch out for Indians. :)
> > Ben.
>
> Nonsense--they have some very fine restaurants here.
>
> --Chuck
I went to an
Nice one! LOL!
m
On Sat, Nov 12, 2022 at 3:36 PM Chuck Guzis via cctalk <
cctalk@classiccmp.org> wrote:
> On 11/12/22 11:56, ben via cctalk wrote:
> > On 2022-11-12 12:33 p.m., Chuck Guzis via cctalk wrote:
>
> > Watch out for Indians. :)
> > Ben.
>
> Nonsense--they have some very fine
On 11/12/22 11:56, ben via cctalk wrote:
> On 2022-11-12 12:33 p.m., Chuck Guzis via cctalk wrote:
> Watch out for Indians. :)
> Ben.
Nonsense--they have some very fine restaurants here.
--Chuck
tube Channel: https://www.youtube.com/@w2hx
>
> -Original Message-
> From: Wayne S via cctalk
> Sent: Friday, November 11, 2022 5:08 PM
> To: General Discussion: On-Topic and Off-Topic Posts <
> cctalk@classiccmp.org>
> Cc: Wayne S
> Subject: [cctalk] R
--Original Message-
> From: Wayne S via cctalk
> Sent: Friday, November 11, 2022 5:08 PM
> To: General Discussion: On-Topic and Off-Topic Posts <
> cctalk@classiccmp.org>
> Cc: Wayne S
> Subject: [cctalk] Re: Inline Serial Device?
>
> Something like this…
>
On 2022-11-12 12:33 p.m., Chuck Guzis via cctalk wrote:
On 11/12/22 10:59, ben via cctalk wrote:
I do too, but don't welcome the market droids that make you upgrade all
the time.
I am putting a projection TV in the living room, and needed to use all
this HDMI or wire less crap. What ever
A surprisingly complex project ;-)
For another alternative, the ever prolific Geoff Graham and co. have
developed an amazingly versatile BASIC interpreter for the Pi Pico:
https://geoffg.net/picomite.html
m
On Fri, Nov 11, 2022 at 9:06 PM Cameron Kaiser via cctalk <
cctalk@classiccmp.org>
On 11/12/22 10:59, ben via cctalk wrote:
> I do too, but don't welcome the market droids that make you upgrade all
> the time.
> I am putting a projection TV in the living room, and needed to use all
> this HDMI or wire less crap. What ever happened to 75 video and 150? ohm
> terminated audio.
On 2022-11-12 11:05 a.m., Chuck Guzis via cctalk wrote:
On 11/12/22 09:41, Ethan Dicks via cctalk wrote:
Yeah, the 555 is extremely simple and is well known and is fairly
cheap, simple MCUs are simple (and cheap) even if they aren't 100%
deterministic like a chip with 20-30 transistors.
On 2022-11-12 9:08 a.m., Tony Duell via cctalk wrote:
On Sat, Nov 12, 2022 at 11:59 AM Antonio Carlini via cctalk
wrote:
Surely a microcontroller is just a 555 with a few extra transistors?
For suitable (large) values of 'few'?
Actually I can think of many differences...
Firstly, the full
I bet NN/AI would be helpful with data recovery - if we can model certain
common failure modes with those old drive heads we could infer what the
data should have been...
--
Anders Nelson
On Sat, Nov 12, 2022 at 1:05 PM Chuck Guzis via cctalk <
cctalk@classiccmp.org> wrote:
> On 11/12/22
On 11/12/22 09:41, Ethan Dicks via cctalk wrote:
>
> Yeah, the 555 is extremely simple and is well known and is fairly
> cheap, simple MCUs are simple (and cheap) even if they aren't 100%
> deterministic like a chip with 20-30 transistors. There's economic
> advantage in flexibility.
There's
On Sat, Nov 12, 2022 at 12:18 PM Chuck Guzis via cctalk
wrote:
> On 11/12/22 02:28, Tony Duell via cctalk wrote:
> > ... This is the sort of
> > thing I'd do with a couple of transistors or an NE555 depending on
> > which turned up in the junk box first.
>
> One thing that a small MCU has over a
On Sat, Nov 12, 2022 at 5:18 PM Chuck Guzis via cctalk
wrote:
> MCUs make a lot of very complex stuff simple. A tape controller that
> would have required a couple of large PCBs now can be put on a
> filing-card size pcb--and most of that is connectors.
You've hit a raw nerve there. I've
I can probably build firmware to this for you and assemble a list of OTS
parts you can connect together in a day or two - what string do you want to
trigger on? Parameters, 8N1? RTS/CTS? Voltage at RS-232 or TTL level?
OTS parts cost maybe $30?
Source: am firmware engineer at Peloton (and still
> Farnell Nederland is quoting me €1.06 (+21% VAT) for the cheapest brand of
> 555 in stock. Their search won't let me find the cheapest microcontroller
> without drilling down further, but an 8 pin AVR is €0.88.
Just checked RS components which is the supplier I normally use.
Assuming I want a
On Sat, Nov 12, 2022 at 10:28:09AM +, Tony Duell via cctalk wrote:
[...]
> The other day I saw a product with a flashing LED, the flash rate was set
> with a knob. Yes, a microcontroller with a pot connected to an analogue
> input and LED hung off an output port. This is the sort of thing I'd
On 11/12/22 02:28, Tony Duell via cctalk wrote:
> The other day I saw a product with a flashing LED, the flash rate was
> set with a knob. Yes, a microcontroller with a pot connected to an
> analogue input and LED hung off an output port. This is the sort of
> thing I'd do with a couple of
On 2022-11-12 11:08, Tony Duell via cctalk wrote:
On Sat, Nov 12, 2022 at 11:59 AM Antonio Carlini via cctalk
wrote:
Surely a microcontroller is just a 555 with a few extra transistors?
For suitable (large) values of 'few'?
Actually I can think of many differences...
Firstly, the full
On Sat, Nov 12, 2022 at 11:59 AM Antonio Carlini via cctalk
wrote:
>
> Surely a microcontroller is just a 555 with a few extra transistors?
For suitable (large) values of 'few'?
Actually I can think of many differences...
Firstly, the full equivalent circuit of the 555 is in the datasheet.
So
On 12/11/2022 10:28, Tony Duell via cctalk wrote:
I thought it was well-known that nothing can be designed without at
least one microcontroller.
The other day I saw a product with a flashing LED, the flash rate was
set with a knob. Yes, a microcontroller with a pot connected to an
analogue
On Fri, Nov 11, 2022 at 10:00 PM Fred Cisin via cctalk
wrote:
> The MCU has replaced the hammer!
> . . . "To a man with a HAMMER|(big jar of blue and black pill MCUs),
> everything looks like a NAIL|(job for an MCU)"
I thought it was well-known that nothing can be designed without at
least one
On Fri, Nov 11, 2022 at 9:24 PM Bill Degnan via cctalk
wrote:
>
> not that it's easy but a raspberry pi could be set up to watch the serial
> line.
So you're suggesting that it takes more components to detect what
character my computer has sent than there are in the rest of the
computer?
-tony
>>> I am looking for a device that sits transparently in an RS-232 serial line
>>> and upon seeing a particular code go over the serial line ((or sequence of
>>> codes) will actual a relay (or a transistor). Something with two DB25s or
>>> DE9s and is configurable to what code will trigger the
On 11/11/22 17:07, Wayne S via cctalk wrote:
Something like this…
https://www.ebay.com/itm/Black-Box-Corporation-Modified-SWED98174-Cos-II-Code-Operated-Serial-Switcher-/165759564735?mkcid=16=1&_trksid=p2349624.m46890.l49286=711-127632-2357-0
Looks like some kind of serial port switcher.
On 11/11/22 16:52, Wayne S via cctalk wrote:
Black box may have something. They had something similar where you could call
in via phone and activate a switch to reboot a computer.
If they do it probably costs about $500. Blackbox is not the company
they used to be. (From someone who still
On 11/11/22 16:24, Bill Degnan via cctalk wrote:
not that it's easy but a raspberry pi could be set up to watch the serial
line.
Probably overkill. I think it could be done with an arduino.
bill
://www.youtube.com/@w2hx
-Original Message-
From: Wayne S via cctalk
Sent: Friday, November 11, 2022 5:08 PM
To: General Discussion: On-Topic and Off-Topic Posts
Cc: Wayne S
Subject: [cctalk] Re: Inline Serial Device?
Something like this…
https://www.ebay.com/itm/Black-Box-Corporation
On 11/11/22 14:00, Fred Cisin via cctalk wrote:
> On Fri, 11 Nov 2022, Chuck Guzis via cctalk wrote:
>> I keep a big jar around that's full of blue- and black pill MCU boards,
>> as well as a few of the more capable STM32F4 and F7 boards. Nowadays,
>> everything seems to look like a job for an
Something like this…
https://www.ebay.com/itm/Black-Box-Corporation-Modified-SWED98174-Cos-II-Code-Operated-Serial-Switcher-/165759564735?mkcid=16=1&_trksid=p2349624.m46890.l49286=711-127632-2357-0
Sent from my iPhone
On Nov 11, 2022, at 14:00, Fred Cisin via cctalk wrote:
On Fri, 11 Nov
On Fri, 11 Nov 2022, Chuck Guzis via cctalk wrote:
I keep a big jar around that's full of blue- and black pill MCU boards,
as well as a few of the more capable STM32F4 and F7 boards.Nowadays,
everything seems to look like a job for an MCU.
The MCU has replaced the hammer!
. . . "To a man
Black box may have something. They had something similar where you could call
in via phone and activate a switch to reboot a computer.
Sent from my iPhone
> On Nov 11, 2022, at 13:40, Fred Cisin via cctalk
> wrote:
>
> Or even cheaper, a dumpstered/e-waste PC
>
>> On Fri, 11 Nov 2022,
I suspect that a cheap minimal MCU could not only do the job, but do it
by scavenging power from the RS232 signal lines (like old serial mice
did). It's really surprising how miserly these things can be with power
requirements nowadays.
I keep a big jar around that's full of blue- and black
Or even cheaper, a dumpstered/e-waste PC
On Fri, 11 Nov 2022, Nigel Johnson Ham via cctalk wrote:
Or even cheaper, and Arduino uno
cheers,
Nigel
Nigel Johnson, MSc., MIEEE, MCSE VE3ID/G4AJQ/VA3MCU
Amateur Radio, the origin of the open-source concept!
Skype: TILBURY2591
On 2022-11-11
Perhaps cheaper still, a Raspberry Pico. Those go for $4, which even for the
smaller Arduinos is hard to beat.
paul
> On Nov 11, 2022, at 4:29 PM, Nigel Johnson Ham via cctalk
> wrote:
>
> Or even cheaper, and Arduino uno
>
> cheers,
>
> Nigel
>
>
> Nigel Johnson, MSc., MIEEE,
Something quite similar, . . . (probably a hassle to switch over) I had a
KVM switch, that permitted two computers to share one keyboard mouse,
monitor, and speakers. DE15, two USB ports and a headphone jack (IOGear
GCS632U?) It apparently watched for a hotkey from the keyboard to
activate
Or even cheaper, and Arduino uno
cheers,
Nigel
Nigel Johnson, MSc., MIEEE, MCSE VE3ID/G4AJQ/VA3MCU
Amateur Radio, the origin of the open-source concept!
Skype: TILBURY2591
On 2022-11-11 16:24, Bill Degnan via cctalk wrote:
not that it's easy but a raspberry pi could be set up to watch the
not that it's easy but a raspberry pi could be set up to watch the serial
line.
On Fri, Nov 11, 2022 at 4:16 PM W2HX via cctalk
wrote:
> Hello all,
>
> I am looking for a device that sits transparently in an RS-232 serial line
> and upon seeing a particular code go over the serial line ((or
52 matches
Mail list logo
