Protecting Your Data; Making Backup Copies; Write-Protecting Diskettes - Epson Equity III User Manual

Do not remove a diskette or turn off the computer while the drive light is
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on. This light indicates that the computer is copying data to or from a
disk. If you interrupt this process, you can destroy data.
Remove all diskettes before you turn off the computer.
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If you have a hard disk drive, take these additional precautions:
Never turn off the power to the computer when the hard disk drive light
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is on. This light indicates that the computer is currently copying data to
or from the hard disk. If you interrupt this process, you can lose data.
Never attempt to open the hard disk unit. The disk itself is enclosed in
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an air-tight container to protect it from dust.
If you are going to move your computer (even to another part of the
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room), run the program on your diagnostics diskette called Prepare
Hard Disk for Moving to move the read/write heads away from the
recording area. See your Diagnostics manual for instructions.

Protecting your Data

There are two ways to avoid losing data you store on disk: you can make
backup copies and you can write-protect your diskettes.

Making backup copies

It is a good idea to make copies of all your data and system diskettes.
Copy all diskettes that contain programs, such as the master system diskettes
that come with the Equity III+, and use only the copies. Store your original
system diskettes in a safe place away from your working diskettes. Copy your
data diskettes regularly (preferably every day) to keep them up-to-date, and
store them away from your originals.
Your MS-DOS manual describes how to make a backup copy of your
MS-DOS system diskette. To make backups of other MS-DOS diskettes, use
the DISKCOPY command or the DU (Disk Utility) program.
If you have a hard disk, keep backup copies of all your program files on
floppy disks, and regularly copy important data files to floppy disks as well.
For more information on backing up a hard disk, see "Using a Hard Disk,"
below and your MS-DOS manual.

Write-protecting diskettes

You can write-protect a diskette to prevent its data from being altered.
When a diskette is write-protected, you can copy data from it, but you
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