Texas Instruments TI-99/4A - Making Backup Copies

PROTECTION OF SOFTWARE
Before you use any pre-packaged cassette or
disk, make a backup copy. Cassettes and disks
do wear out.After much use, they develop
errors. Backup copies extend the useful life of
your programs by letting you save the master
(original) cassette or disk; the master should be
used only to make new error-free program
copies. Use the backup copy whenever you run
a program. That way, in case anything happens
(likean electrical surge or lapse)your original
program is safe.
Some software manufacturers have written pro
grams which are difficult or impossible to copy.
Before you buy a program, ask your dealer ifit
can be copied. If you have another option, don't
buy this kind of software. If you already own
some, or if you really need that particular pack
age, check with your dealer or the manufacturer.
Sometimes, with proofof purchase, you can get
backup copies for a nominal fee.
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