Apple IIe Card - Manual (Page 53)

2. While the computer is shut down, insert your copy of the
IIe Startup Disk into the built-in disk drive.
Make sure the disk is not locked.
3. Turn on the Macintosh LC.
If you see a Restart button on your screen, click it.
You’ve just started up from the IIe Startup Disk, so you can run Apple IIe
programs and manipulate Apple IIe files until you shut down or restart
the Macintosh LC.
This section explains why you need to start up from the IIe Startup Disk
to work with Apple IIe files or programs. (If you’re not interested, you
can skip this section.)
Normally, Macintosh computers can’t recognize Apple IIe disks. (In fact,
if you insert an Apple IIe disk into a normal Macintosh, the Macintosh
asks if you want to erase it.) To be able to recognize Apple IIe disks, your
Macintosh needs a special startup document, called
ProDOS File System,
in the System Folder it uses to start up.
If you’re a floppy disk startup person, either you don’t have a hard disk
or the System Folder on your hard disk doesn’t contain this special file.
However, the System Folder on the
IIe Startup Disk does contain it.
When you restart the computer with the IIe Startup Disk in the disk
drive, the ProDOS File System document is loaded, enabling the
Macintosh to recognize Apple IIe files.
Why you need to start up
from the
IIe Startup Disk
Chapter 3: Learning to Use the Apple IIe Card 37