Re: Help identifying card

[c8922369@pavarotti.newcastle.edu.au (Leon Garde)]

James Noyes (jnoyes@nospam.sogi.org) wrote:
: Just perusing some of my old Apple // cards tonight and came across
: one that I can't identify.  It's a full-length card, and has "Digital
: Research" printed on it.  It also has what appears to be some RAM, a
: Z80 cpu, a Motorola 6845 and a bunch of other support chips.  Three of
: the chips have stickers on them that read "Gold Card Mailbox", "Gold
: Card Boot From", and "Gold Card DMC".  I'm assuming that this would be
: a "Gold Card", but what the heck does it DO?
: Anyone?

well, what is does is it changes the cpu of the apple into a z80.
the z80 on the card takes over the system.

the 6845 was a graphics controller.  used on monochrome text/graphics,
cga  graphics cards for the IBM PC.

the only available OS for this "z80 in an apple"  was CP/M.. as CP/M  was
also DR's product.

you might remember Digital Research   from the IBM PC / microsoft story,