Author Topic: Old IBM compatible PC/XT/AT cards  (Read 44987 times)

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Offline electronicsguy123

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Re: Old IBM compatible PC/XT/AT cards
« Reply #100 on: October 21, 2023, 08:26:37 am »
Scan of the magazine article
 

Offline Phil_G

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Re: Old IBM compatible PC/XT/AT cards
« Reply #101 on: November 13, 2023, 01:50:30 pm »
I have the Maplin 8255 card here on my desk & was thinking how useful it was back in the day. We used to do all sorts of tricks with the IBM printer port (parallel, lpt, centronics) but this was a dedicated I/O board which was really nice.
Heres the full article:
 

Offline Veteran68

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Re: Old IBM compatible PC/XT/AT cards
« Reply #102 on: November 13, 2023, 02:22:30 pm »
Just seeing this old thread since it was bumped recently.

I've collected and discarded countless old ISA, MicroChannel, AGP, and other legacy cards since the 80's.

Joe showed an IRMA card in his first post, which is what prompted me to respond. Back in the mid-80's I interned (later hired, but didn't stay long) for ICOT Network Systems which was probably IRMA's biggest competitor in 3270 cards. I wrote the character generator software (in x86 assembler) for those cards. I still have a greenbar printout of that asm code somewhere. Preserved for posterity, as it was my first "commercial" software product that I wrote entirely by myself. :)
 

Offline Canis Dirus Leidy

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Re: Old IBM compatible PC/XT/AT cards
« Reply #103 on: November 13, 2023, 09:25:02 pm »
Some old graphics card. The seller claims that it's a HGC clone.
1927476-0
 

Online coromonadalix

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Re: Old IBM compatible PC/XT/AT cards
« Reply #104 on: November 16, 2023, 08:16:30 pm »
thoses capacitors are huge  loll

you have an pcie to isa interface ...

https://www.ebay.com/itm/324941937180?
 

Offline Canis Dirus Leidy

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Re: Old IBM compatible PC/XT/AT cards
« Reply #105 on: November 23, 2023, 07:43:54 am »
thoses capacitors are huge  loll
(In)Famous К10-7В (AKA "little flags" or "clay capacitors").

In continuation of the "horrors of our town" theme:
PDP-11 for IBM PC/AT (It's not mine, so I can't tell if it's an original or a modern replica).
SM5300 tape drive interface board.
QBUS МПИ adapter board
 

Offline DavidKo

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Re: Old IBM compatible PC/XT/AT cards
« Reply #106 on: January 08, 2024, 12:17:17 pm »
I have not burned a CD in over 10 years and was looking forward to some much needed improvements in this area.   The new PC that is now almost 6 years old, running Windows 10, I have managed to put three CDs to the dumpster so far.   Some cryptic message because there is still not enough space on a hard drive to actually add some useful error messages.   I was going to try a small R/W disc but the idiots who designed the PC mounted the drives vertical rather than horz.  The disc fell into the drive as expected.  lol.   So it's sitting on top of a glass of water.   lol.   Of course, that failed as well.

I have a new burner sitting in a box.  Too bad it's not SATA and the new PC only supports SATA.   

 :-DD :-DD :-DD

I use SATA to PATA adapter for my LiteOn.  Something like this
 

Online coromonadalix

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Re: Old IBM compatible PC/XT/AT cards
« Reply #107 on: January 31, 2024, 05:36:55 pm »
I have not burned a CD in over 10 years and was looking forward to some much needed improvements in this area.   The new PC that is now almost 6 years old, running Windows 10, I have managed to put three CDs to the dumpster so far.   Some cryptic message because there is still not enough space on a hard drive to actually add some useful error messages.   I was going to try a small R/W disc but the idiots who designed the PC mounted the drives vertical rather than horz.  The disc fell into the drive as expected.  lol.   So it's sitting on top of a glass of water.   lol.   Of course, that failed as well.

I have a new burner sitting in a box.  Too bad it's not SATA and the new PC only supports SATA.   

 :-DD :-DD :-DD

I use SATA to PATA adapter for my LiteOn.  Something like this

you have some bidirectional ones too, pata to sata or sata to pata ...   cheap prices,  i have some of them saved me a few times
« Last Edit: January 31, 2024, 05:38:32 pm by coromonadalix »
 

Offline jrmymllr

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Re: Old IBM compatible PC/XT/AT cards
« Reply #108 on: October 04, 2024, 07:31:35 pm »
Now for my obscure card. It's just a FDC/HDD/IO card, but I think it's cool because it appears to be the reference design from SMC for the chip in the middle. And I can't find it anywhere else online.

Someone on a retro computer forum was even able to find the schematics on the SMC website using the Wayback machine. The card works if you're wondering, despite the empty sockets. From the schematics, they appear to be for an EPROM and PAL devices....for what purpose exactly I don't know.
« Last Edit: October 04, 2024, 07:33:51 pm by jrmymllr »
 

Offline helius

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Re: Old IBM compatible PC/XT/AT cards
« Reply #109 on: October 05, 2024, 01:24:59 am »
the empty sockets. From the schematics, they appear to be for an EPROM and PAL devices....for what purpose exactly I don't know.
The EPROM may be for an extension BIOS, which is useful for adding netboot or large disk support. PALs could be anything.
 

Offline jrmymllr

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Re: Old IBM compatible PC/XT/AT cards
« Reply #110 on: October 05, 2024, 06:31:15 pm »
the empty sockets. From the schematics, they appear to be for an EPROM and PAL devices....for what purpose exactly I don't know.
The EPROM may be for an extension BIOS, which is useful for adding netboot or large disk support. PALs could be anything.
That was my assumption, but what kind I don't know. SMC probably didn't specify and it was up to the user. The PALs I think were for address decoding for the EPROM.
 

Offline K5_489

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Re: Old IBM compatible PC/XT/AT cards
« Reply #111 on: October 05, 2024, 07:22:32 pm »
All my ancient stuff is long gone ancient history by now (multiple cross country moves tends to do that), but the early networking cards did bring up some good memories of my teen years in the 90s when I had gotten my hands on some surplus ARCnet twisted pair cards, and proceeded to wire up the house for networking...not because I needed to, just because I could...or so I thought  :-DD  Turned out that using regular ol' telephone wire didn't work out all that well... :-//

I got pretty dang good at hiding cabling though, so that Dad wouldn't figure out that I was drilling holes all over the house to run this stuff through the basement.  It wasn't until they sold the house years later, long after I moved out on my own, and they sold the house that I got a call from Dad - "You know anything about all this telephone wire in the house all over the basement, but not connected to the other phone lines???" 

"Maaaaaaybeeee"   :-DD
 
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Offline LittleFrog

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Re: Old IBM compatible PC/XT/AT cards
« Reply #112 on: January 13, 2025, 07:22:29 pm »
Hi,

My contribution is a pair of ISA cards from a product called a "386Gold" from a company called "Logicraft" which you can read about here;

https://en.wikipedia.org/wiki/Logicraft

Not shown in the photos is a 286-NEAT chipset based motherboard with a number of 8 and 16 bit ISA slots.  The first card I've photo'd enables the motherboard to talk to an Ethernet port, floppy disk and a proprietary Status Display.   I have a floppy disk containing an operating system and (what looks like) all the software to enable the system to boot.

The second photo shows one of four 386 based PC's on a card which (I think) all run MS-DOS.

If you have a DEC PDP-11 (or maybe other later DEC machines) with appropriate software, the 386Gold system will allow terminal users to run MS-DOS applications (like text mode spreadsheets) on the 386 cards as if they were connected directly to the terminal.

Dave
Dave
 

Online DiTBho

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Re: Old IBM compatible PC/XT/AT cards
« Reply #113 on: January 13, 2025, 09:16:36 pm »


how did you record this mini-video? From a VGA-grabber?  :o :o :o
« Last Edit: January 13, 2025, 09:40:50 pm by DiTBho »
The opposite of courage is not cowardice, it is conformity. Even a dead fish can go with the flow
 

Offline Halcyon

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Re: Old IBM compatible PC/XT/AT cards
« Reply #114 on: January 13, 2025, 11:47:36 pm »
how did you record this mini-video? From a VGA-grabber?  :o :o :o

I don't remember now. It might have just been off the internet. But I do have VGA capture devices that I use from time to time.
 


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