11 May
2008
11 May
'08
1:35 p.m.
On Sunday 11 May 2008 12:08, Chuck Guzis wrote:
I had idle thoughts of something of the sort, but never got the whole way
through thinking about it...
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.
I didn't know there was an original application.. The gear I had that gave me
that cabinet was telco, I think.
--
Member of the toughest, meanest, deadliest, most unrelenting -- and
ablest -- form of life in this section of space, ?a critter that can
be killed but can't be tamed. ?--Robert A. Heinlein, "The Puppet Masters"
-
Information is more dangerous than cannon to a society ruled by lies. --James
M Dakin