Date: Sat, 10 May 2008 20:50:33 -0400
From: "Roy J. Tellason"
Oh, and these aren't STD bus, which is 56 pins
rather than 22/44. :-)
Yeah, I know. My wondering was that there was an abundant common
source of small-profile cards that might be adapted to an 8-bit bus
and wondering if they were still common at all.
Although there are fewer pins, I do remember mounting a small "sub-
bus" in my MITS 8800 using these as a "cheap" expansion for little
peripheral projects where an S-100 card was overkill. I basically
brought the 8 bits of data and 8 bits of address out with the I/O
port handshaking lines to a card. Most peripherals don't need access
to RAM I/O space anyway.
Does anyone recall what the original application of the 22/44 cards
was? I suspect industrial control or maybe telco switching.
Cheers,
Chuck