Date   : Sun, 14 Oct 1990 15:22:03 GMT
From   : sdd.hp.com!zaphod.mps.ohio-state.edu!rpi!sci.ccny.cuny.edu!dsndata!unocss!mlewis@ucsd.edu (mlewis)
Subject: Need info for an S-100 bus system

From article <1990Oct11.201515.22306@news.iastate.edu>, by spam@hobbes.cc.iastate.edu
(Begley Michael L):
> Hi...Yesterday I bought an S-100 bus system that the University was selling
> off.  It works, but I have absolutely no software or information on it.
> The case has no manufactures' name on it, but inside are 4 boards:
> 3:  Vandenburg Data Products 16K Static Memory Board (rev B)
>     This has 4 banks of 8 NEC M79729-738 memory chips.


Well, I have three of these (Rev A), bought in 1976 and still working.  This
is  a 16K static MOS RAM board.  Note, MOS.  The Rev A boards were not rated
for 4 MHz, but the Rev B is.  About the only CPU you can use with those 
memory boards is a Z-80A, which you have.  

Welcome to the wonderful world of S-100, where expenses often exceed gains.
S-100 boards available now are VERY expensive, like $350 for a SCSI controller,
and so forth.  I really liked the S-100 buss  (I have 3 S-100 systems) but
they are not worth my effort to upgrade.

Marc

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