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Phil, Looking through the CP/M Definitions for the IMS 5000 I see only two definitions that should work on your 5.25" Floppy's. #...

I have a 286 as well and I wouldn't use them all for the same thing. There is not much software that will only work on a 286, rather...

I haven't check R,G,B with the scope but confidently tell that they are probably not going to give 300KHz. I do not see any color so it...

Probably the same thing you are using your v20s and 486 for. VGA doesn't make sense. The complexity is high and it will certainly be a...

Your idea is valid, but the implementation you propose is missing some important aspects. You need to add status bits to mimic TBRE and...

So here are definitely better news. The 25V 10uf cap that you can see in the pic is directly connected. Initially when I recapped, I...

If you already have int divide implemented elsewhere, its hard to beat this recursive algorithm for simplicity (for whatever CPU)...

I have a 286 but the only reason I'm sticking with it over a 386 (have a board ready to go) is that I've read that the IBM PGC doesn't...

I correct my previous message. Six ROMs, including the character generator are bad, and three more could also be in trouble.

If you are using audio asciiexpress.net is several times better in terms of transfer speed https://asciiexpress.net/

You can start with cleaning the inside and checking all the chips are fully firmly set in their sockets and all cables are connected.

I found this "label" at the back of the power supply that came with my GRIDCASE 4 (I'm not sure what series-number it corresponds to...

No monitor expert here but I agree. You can see the radiating curves from the colored spot. I vaguely remembered old Trinitrons having...

I’m very late to this discussion but since I was there (worked on System/23) I have some direct knowledge of what was going on with the...

No offense, I generally like you but as an impartial observer of this thread it does seem like you have had the most consistently...