Storage Cost Calculation
denismfmcmahon at gmail.com
Mon Sep 29 16:44:34 CEST 2014
On Sun, 28 Sep 2014 20:07:31 +0000, Duncan Booth wrote:
> Later on the B+ had 64k of RAM and the B+128 had 128k of RAM and in each
> case the additional RAM was paged in as necessary but I don't think the
> RAM in the B was ever expandable.
You could get various expansions to page multiple roms, I had a machine
at one point with 15 multiple internally and a zif socket on top.
I think there was a board that sat across the 4 paged ROM sockets which
then had a cable to another board with 16 sockets on it, and one of the
16 sockets came through the case in a ZIF.
Aries or Dabs or Watford Electronics I expect.
I also remember soldering switches to TEAC drives from RS to make them
40 / 80 track switchable.
Duncan, your name looks mighty familiar ..... Do you know a Judith?
Denis McMahon, denismfmcmahon at gmail.com
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