Re: Apple IIGS and RAM Disk

[dempson@actrix.gen.nz (David Empson)]

Roger Johnstone <bhmhome@es.co.nz> wrote:

> There were at least two battery-backed static RAM cards available for the
> Apple II. The Thot Speedisk and the Cirtech PlusDISK, there may have been
> others.

Here's one other: the OctoRam ESP ("Extended Static Pack"), which is a
piggyback card for the OctoRam.  It supports up to 512KB of static RAM,
using 32Kx8 chips.  There is a NiCd battery pack on the card.  It has a
write-protect jumper, and you need to use a special pre-loader to load
the driver firmware into the card.  It appears in the slot 5 SmartPort
chain as "/ROM5".

Mine got depopulated when work had an urgent need for 32KB static RAMs
(and they were rather expensive at the time).  The battery had stopped
working by that stage, and I was using a jury-rigged external battery
pack with 3 AA Nicads.

-- 
David Empson
dempson@actrix.gen.nz
Snail mail: P O Box 27-103, Wellington, New Zealand