Copying Your Ms-Dos Diskettes - TRIGEM CW3S20A Operation Manual

From the A> prompt, try the command:
The computer will respond:
Press ENTER after you insert the diskette into the drive, then
the system prompt will be:
If you have a dual floppy disk drive system, the second, or "B"
drive is now the system default drive, as indicated by the new
system prompt. If performed on a single drive computer system,
this command will still change the system prompt to B>, even
though there is only one physical drive present.
The BIOS "pretends" there are two disk drives present. It
routes all commands intended for the B drive back to the A
drive.
This feature is intended to allow owners of single drive systems
to use application software designed for dual drive systems.

Copying Your MS-DOS Diskettes

The first important task you must complete with your new
system is to make a "backup" copy of your MS-DOS diskettes.
To do this, you will need seven blank diskettes. It is a good
idea to prepare seven diskette labels at this time. Write the
following on those diskette labels, using a felt tipped pen:
Using MS-DOS With Your
4-11
Computer