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I suspect it's 5" 40trk flp

try varx https://www.ebay.com/itm/326103335571 just sold

I've dumped the firmware from the board I bought, and got a scan of the manual which includes the schematics of the personality boards http://bitsavers.org/pdf/intercontinentalMicroSystems/ICM_CPZ-186/ I suspect the prom is for a 5" drive (CPZ-186_40T on the label) Are there other firmware...

http://www.jrfmagnetics.com/tapeheadintro.html NOS 1/2" 9-track tape heads are still available. I've bought many, many, many of them. 7-track has been out of production for 50 years and are very difficult to find combo 7/9 track heads are even less common

https://www.os2museum.com/wp/how-not-to-release-historic-source-code/

You need it to isolate the sense amps from adjacent board digital logic noise, which you can deal with by rearranging the cards.

He was closely associated with PAiA in Oklahoma City http://bitsavers.org/pdf/paia http://bitsavers.org/pdf/paia/8700/John_Simonton_-_Friendly_Stories_198001.pdf https://tapeop.com/interviews/38/larry-fast/

I've never had to do this, but it came up in another context. Can emulated images be written back to a physical drive with the emulator board?

I got confused between this and the old messaging system. I do like the new arrangement.

Thanks! that would be helpful. The CPZ-186 has an on-board floppy controller. http://www.s100computers.com/Hardware%20Folder/IMS/80186%20SBC/80186.htm I've had a pile of other boards for a while, I need to go back and see if I have a hard disk controller Do you have any idea what this is...

http://archive.computerhistory.org/resources/access/text/2015/07/102726173-05-01-acc.pdf

https://wiki.unix-haters.org is one place to find LISPlore https://wiki.unix-haters.org/doku.php?id=smbx:start https://wiki.unix-haters.org/doku.php?id=smbx:history in particular covers the development of the IVORY also https://tumbleweed.nu/ LISPMs tended to have tagged memory storage.

I've had a few 80186 slave boards for a while, and just picked up an ICM CPZ-186 SBC. I was wondering if the TurboDOS for it has turned up. I didn't see a thread about 16 bit TurboDOS beyond the one about getting it running on a PC.

I think the last time I needed power connectors I just watched on ebay for them someone on eBay is selling complete bus cable assys https://www.ebay.com/itm/266774813263

If anyone still has a 5218 I'd really like to document the logic inside of it with good pictures of the board innards and if there is any firmware to dump.

IBM wasn't a monolythic entity. Small systems came out of many divisions/locations that in some cases competed with each other. The early 80s pre-PC was a crazy time with at least six different IBM product lines in the small computer/computerized office space. Very few examples of a bunch of...

There is an active discussion of LISPMs on the cctalk Discord The origins are in the CONS and CADR architectures at the MIT AI Lab in the 70s. TI built systems decsended from the CADR, Symbolics and LMI were commercial spinouts from MIT AI Xerox built microcoded lisp machines based on D-Machine...

There is an extremely high probability any 486C that isn't shown with a working LCD will have a dead one.

"I had hoped with the forum re-organization that those discussions would be collected here." I don't think there is any intention of rearanging messages, too many links would break.

I just dug these up for someone on the Applesauce Discord