On Nov 3, 7:48 pm, Steven Hirsch <snhir...@gmail.com> wrote:
sfahey wrote:
To: Steven Hirsch
Re: Re: Returning Apple User
By: Steven Hirsch to comp.sys.apple2 on Mon Nov 03 2008 07:47 am
> Otherwise, probably best to stick with something like an Applicard clone.
> That's a vanilla Z80 design with its own 64k bank of memory. I do have the
> schematics for it and it's all 74-series jellybean logic.
Wasn't this card expandable to 128K with an add-on module? Wasn't there some
kind of additional expansion for these also? My memory is very fuzzy, but iirc,
there were 2 different things you could add to these, RAM and something else.
Yes, it was. You had to stack (2) little daughter cards on the headers at the
front of the Applicard. There was an SIO board that could connect there as
well. That was never produced commercially, but Ray Klein (who I believe also
designed the original SoftCard) did do a board layout and sent these to folks
who asked nicely. I think I have a couple of these somewhere.
Even rarer was the Apple /// variant of the Applicard which was to form the
basis of an Apple IIc CP/M add-on. I think I may have one of these also.
Haven't thought about this stuff for years. Really takes me back!
Steve
The link below has an interesting read about Ray Klein, the AppliCard
and the proposed IIc version.