Apple IIe Card - Manual (Page 17)

If you're a floppy disk startup person, you need to know a crucial technique
-- starting up from the IIe Startup Disk -- because it's the only way to run
Apple IIe programs and manipulate Apple IIe files. The technique is described
in the next section, "Starting Up From the IIe Startup Disk."
Starting up from the IIe Startup Disk
To start up from the IIe Startup Disk, you must turn on your computer with
the disk in the disk drive, as shown in these steps.
!! IMPORTANT: If you are a hard disk startup person, stop reading this
section now and skip to "Switching Between the Macintosh and Apple IIe
Environments." !!
1. If your Macintosh LC is on, shut it down.
Quit any programs you might be running and choose Shut Down from the Special
menu. You don't need to turn off the power.
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.
Why you need to start up from the IIe Startup Disk
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.
Switching Between the Macintosh and Apple IIe Environments
Having a Macintosh LC with an Apple IIe Card is like having two computers in
one. You can easily have the computer switch between acting like a Macintosh
and acting like an Apple IIe. The exercises in this section explain how.