[comp.sys.apple] Apple Tech Note: CP/M Cards

ranger@ecsvax.UUCP (05/07/87)

Apple IIGS Incompatibilities: CP/M Cards
The Apple IIGS is designed to be used with the vast majority of Apple IIe
hardware and software. However, there are some design differences that will
cause some products to be incompatible with the Apple IIGS.
 
Some CP/M cards designed for the Apple IIe use non-Apple conventions on the
I/O Select and Device Select lines in the expansion I/O slots. These cards
are not compatible with an Apple IIGS. Among others, cards currently available
from Microsoft and Digital Research cannot be used on a IIGS.
Apple Technical Communications