Date   : Tue, 28 Jul 1987 08:33:26
From   : hanscom@lll-es-s05 (Roger Hanscom 423-0441)
Subject: S-100 Memory

If I can add my two cents worth to the Paul Vixie/Willie Smith discussion
about S-100 memory --  If it will be used for RAM disk, there's a DRAM
solution that is much less expensive than the alternatives you've considered.
Digital Research (Computers) in Dallas, now has a 1 Meg RAM disc card
for S-100 systems.  A bare board with software and documentation runs
about $70.  It is 4 banks of 256K DRAMS with parity, and uses INTEL's
8203 memory controller chip.  I don't know how fast it will run, you'd
have to check that out with them.  I'm building one now, and considering
my past experience with their quarter Meg RAM disks ... I can't wait to
get it running.  They claim that it is possible to stuff up to 4 of these
cards in one buss, so one could have bunches of RAM disk for little $'s
(compared to the prices you guys are talking about).  It is also available
in kit form, but I'm not sure of the price.  Check it out!!