Apple IIe Card - Manual (Page 116)

Many Apple IIe programs are designed to look for certain kinds of
hardware, or
cards, in specific locations, or slots, in the computer. Since
the Macintosh LC isn’t an actual Apple IIe, it doesn’t provide these slots,
nor does it contain the cards. Instead, the Macintosh LC uses software
representations of the slots and cards to simulate the hardware
configurations of an Apple IIe.
The settings in the Apple IIe Option Panel are preset to the
configurations most commonly used by Apple IIe programs. You may
never need to change any of these settings.
Many Apple IIe programs work more efficiently with access to additional
memory. The Apple IIe Option Panel lets you add additional memory by
designating a portion of the Macintosh LC computer’s available memory
for Apple IIe programs. Apple IIe programs interpret this extra memory
as an Apple II Memory Expansion Card.
The Memory Expansion Card panel lets you set the size of the Apple II
Memory Expansion Card. The size may be set in 256K increments up to a
maximum size of 1024K (1 megabyte).
Changing the Memory
Expansion Card size
Configuring
cards and slots
Chapter 5: Reference 100