Apple Macintosh Performa 600 Series - Manual (Page 50)

6 Insert a high-density floppy disk into the disk drive.
A message tells you when it’s time to insert another floppy disk.
7 Lock each disk as you remove it from the computer. Label the disks to indicate the order
in which you create them (for example:
Backup 1, Backup 2, and so on).
To lock a disk, turn it label-side down and use a pen or your fingernail to slide
the tab in the lower-right corner of the disk so that the square hole is open.
(The disk has two square holes, but only one of them has a moveable tab.)
8 When a message appears telling you that you’ve finished, store the labeled and locked
floppy disks in a safe, cool place.
Using Apple Backup to update your backup copy
If you made a backup copy of your hard disk information on floppy disks
using Apple Backup, you can keep your backup copy up-to-date by following
the instructions here.
By the way: Another way to make sure you have up-to-date information is to
use a new set of floppy disks to create your backup copy, preserving your
original backup. If you are using a fresh set of floppy disks, follow the
instructions in the previous section, “Using Apple Backup for the First Time.”
1 Get the floppy disks that you used to make a previous backup copy.
Have some extra high-density disks on hand in case there is more information
on your hard disk than there was the last time you made a copy.
2 Turn on your Macintosh, if it’s not already on.
3 Click the Applications grouping button in the Launcher.
The buttons for application programs available in the Launcher are grouped
under the Applications button.
43 Using Programs and Backing Up Disks