Making Backup Copies
It is important to make copies of all your diskettes. Make backup (working) copies of all diskettes that contain programs, such as your operating system and Reference diskettes; then use only the copies. Store the original diskettes away from your working diskettes. Also, copy your data diskettes as necessary to keep your files
You’ll probably use your hard disk to store the programs and data files you use regularly. Keep backup copies of all these files on diskettes.
You can copy your data in several ways. See your operating system manual for instructions.
Using a Single Diskette Drive System
For example, if you need to make a copy of a diskette, you can insert the diskette in drive A and enter the following command: