Re: New Pile of Mystery Boards

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

Byron Desnoyers Winmill <wbdesnoy@acs1.acs.ucalgary.ca> wrote:

> : 13.  AII Memory Expansion.  Apple Computer, 1985.
> 
> This is a very nice board, but I have always been left wondering: can
> this memory boon (for a IIe at least!) be used by DOS 3.3 programs?

Not without some software to patch the RWTS module in DOS.  I've never
gone looking for any, but there might be something around.

There is another card which has similar functionality: the Applied
Engineering RamFactor.  It also supports 1MB, but can take a piggyback
card with an additional 2MB.

One major additional feature is that it has a built-in patch mechanism
which lets the card be used as a DOS 3.3 volume.  If I remember right,
you boot DOS from a floppy then use IN#n (where n is the RamFactor's
slot) to hook the card into RWTS.

The software also lets you "partition" the RAM on the card, allocating
some of it to DOS and some to ProDOS (or was it ProDOS and memory
expansion for applications?  I forget.)

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