Apple Macintosh LC 630 DOS - Manual (Page 55)

Working in the PC environment
When you switch to DOS or Windows, you’re operating in a real PC world.
The floppy disk drive, mouse, and keyboard all act as they would with a
standard PC. There are, however, some mapping issues you need to be
aware of.
Floppy disk drives and floppy disks
m The Macintosh floppy disk drive is drive A. To eject a disk from this disk
drive while you’re in the PC environment, press x-E.
m If you insert a Mac OS-format floppy disk while you’re in the PC
environment, it is ejected.
You can access an unlocked floppy disk only in the environment that was in
the foreground when the floppy disk was inserted.
When you insert a locked PC disk, both environments have access to it.
Blank disks are formatted as DOS disks in the PC environment. In the
Mac OS, you can format disks for DOS or the Mac OS (among other choices).
Some blank disks are preformatted by the manufacturer. If you insert a new,
blank disk in the PC environment and it is ejected, it may have been
preformatted as a Macintosh disk. To use the disk in the PC environment, you
must first return to the Mac OS and reformat (reinitialize) the disk as a
DOS disk.
The Mac OS Disk Copy application program cannot read a DOS-formatted
floppy disk unless the disk is unlocked.
Floppy disks formatted in the PC environment in DOS 720K format are not
readable by some DOS computers. Instead, format the disk in the Macintosh
environment, choosing “DOS 720K” as the format. See “How do I prepare a
disk for use?” in the “Disks” topic of Macintosh Guide, available in the
Guide (h) menu.
Restarting the PC from a floppy disk
To restart (reboot) the PC environment from a floppy disk, insert the disk into
the floppy drive. Press x-Control-Alt-[keypad] period. When the floppy disk
is ejected, immediately reinsert it into the disk drive.
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