Apple Macintosh LC - Manual (Page 35)

A disk name can have up to 27 characters, though it can't contain a colon
(:). You can use the Delete key to erase one or more characters if you make a
typing mistake.
It's a good idea to give each of your floppy disks a name that will help you
identify its contents, and to write that name on the disk label.
4. Type a name for the disk.
Any name will do. For now, type your name.
5. Click OK.
The initialization process begins. It takes a minute or two, during which a
series of three status messages appear on the screen. When the last message
disappears, the process is finished. The disk icon appears on the desktop
with its new name.
Your new disk has now been initialized. It is ready to use. From now on when
you insert this disk into a disk drive, you will see its icon on the desktop.
This tells you that the disk is ready to use.
Now skip the next section and begin reading "Ejecting a Disk From a Disk
Drive."
Erasing a Disk So You Can Reuse it
By erasing its contents, you can use an old disk to store new information.
Erasing a disk is also called reinitializing or reformatting it.
The process is similar to the process of preparing a new disk for use.
1. Insert the disk into a disk drive (you may have done this already).
Remember not to use 1.4 MB disks in 800K drives.
After a moment, the disk icon appears on the desktop.
2. Choose Erase Disk from the Special menu.
A box appears asking you to confirm that you really want to erase the disk.
If you inserted a 1.4 MB disk, you'll see a message something like this:
If you inserted an 800K disk, you'll see a message something like this:
You would click Cancel if you wanted to change your mind (for example, if you
realized that your only copy of an important letter was on that disk).
The computer gives you a chance to back out of the procedure because once you
erase a disk, the information on that disk is gone forever.
3. If you are erasing a 1.4 MB disk, click Initialize.
If you are erasing an 800K disk, click Two-Sided.
The erasing (reinitialization) process begins. It takes a minute or two,
during which a series of three status messages appear on the screen. When the