homemade computer for fun and experience... - test-drb@ccmp.vtda.org

4 Apr 1999

please see imbedded comments below.

Dick

-----Original Message-----
From: Allison J Parent &lt;allisonp(a)world.std.com&gt;
To: Discussion re-collecting of classic computers
&lt;classiccmp(a)u.washington.edu&gt;
Date: Sunday, April 04, 1999 11:47 AM
Subject: Re: homemade computer for fun and experience...

...
 <have something concrete in mind, too.  If one
inserts a wire-wrap 62 pin
<(8-bit ISA) connector into a DIN 41612 right-angle socket, such as what on
<finds on a VME wire-wrap board, but of opposite gender, (remembering that
<once sold S-100 wire-wrap boards with a pattern certainly suitable for thi
<purpose, and VME wire-wrap cards as well) one can, indeed, host two 8-bit

Been there and done that.
Also, there are no less than two articles on how to go from s100 to ISA.
 There's a substantial reach from an article to a solid and working circuit
on a board capable of actually supporting the functions.  This is
particularly true since, now, the user is required to understand the inner
workings of his own machine as well as those of the card he wishes to use.
Having the usual inkling about ISA is not always sufficient.

...
 <ISA cards on a single s-100 board.  This would
certainly be cheap enough i
<most cases, to warrant such an effort.  The software might get to be a
<problem, though. 

Yes, and therein lies the "problem" for the average user.

...
 What software problem... since s100 cards tend to be
all different anyway
it would be the norm that software would have to be created.

Allison