There are currently two types of memory cards for the Apple II family of
computers. First is the new Apple II Memory card from Apple Computer Inc. The
other type is the RamWorksII, Z-Ram,and Multiram type cards. The latter cards
are manufactured by Applied Engineering and Checkmate Technology Inc.
Catalyst 3.0 recognizes the Apple II memory card as a Ram disk when it boots.
This due to the way this card is designed. The card can be installed into any
slot in the Apple except for the Auxiliary slot for the 80 column card. This
card looks like a disk drive to the system.
The Cards that install extra memory into the Auxiliary slot requires a program
be run to tell the system that the memory is available. Due to this requirement
Catalyst 3.0 does not know that the Ram disk exists. These cards install the
extra memory as banks of memory thus requiring software to access it.
Features of Catalyst and Ram disks.
Catalyst will work with both types of Ram disks. However the the automatic
program load features of Catalyst are only supported by the Apple II Memory
board.The other Ram disks will be displayed on the desktop as a 5.25" diskette.
These Ram disks can be accessed just like any other diskette. One note of
Caution if a failure or power loss occurs any data in the Ram disk will be lost
For maximum speed the Catalyst System file should be copied to the Ram disk.
NOTE: Apple Computer Inc. is not responsible for the contents of this
article.