Kreisen 3 8 6 X / X E - Manual (Page 91)

When the computer is finished comparing the diskettes, the
drives will turn off, and the following message will appear:
Type N to return to the system prompt.
If there is a problem with the backup diskette or if you put the
wrong diskette into the drive by mistake, the computer will
respond:
After you have confirmed that the backup diskette is a good
copy of the
master MS-DOS diskette, you may put your master
diskette away in a safe place and put the label on the backup
diskette. From now on, only use the master MS-DOS diskette
to make copies. For all other purposes, use the backup copy of
the MS-DOS diskette. By using the backup copy for everyday
computing, and saving the master diskette, you ensure that any
accidental erasures can be replaced.
From now on, when this manual refers to the “main system
diskettes,” use the backup MS-DOS diskette.
Using MS-DOS With Your Computer 4-19