Apple // peripheral cards

[jlogo@NOSPAM.zipworld.com.au (jlogo)]

Could anyone please provide more information on the following Apple //
interface cards.

1. Apple computer ROM CARD  (C) 1978 (Has about six socketed ROM chips
in parallel with a switch at the far side of the cardl).

I suspect this card is used in a ][ or ][+ machine? (I never used a
][/][+ machine - only a //e).

2. DIGITEK serial interface DK 244 (Blue PCB with serial interface
socket).  Looks like a high-speed serial interface card for connecting
a serial printer or modem.  

Anything special about it compared with the SSC?.
  
3. Grappler+ Printer interface (Blue/Green PCB with 26-pin interface).
Looks like a serial/parallel printer interface card with a larger
buffer?.

Also has 4 DIP switch settings on the far side.  Is this some kind of
buffered printer interface card ?.
.  
Also, has anyone had any troubles getting a MS softcard (or softcard
clone) working in either a ROM01 or ROM03 GS?.  I can't get my
softcard to work at all in either GS system even after dropping the
clock speed down to 1MHz.  I have the card setup as a chosen device in
both GS machines and I'm using the appropriate Apple CP/M system
software on 5.25" media.

.


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