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Some program diskettes, such as your MS-DOS diskettes,
have no notch so they any permanently write-protected.
This protects them from being accidentally erased or
altered.
On a 31/2inch diskette, the write-protect device is a small
switch on the lower-right comer on the back, shown below. To
write-protect a 3l/2-inch diskette, slide the switch toward the
edge of the diskette until it clicks into position, exposing a hole
in the comer.
To remove the write protection, slide the switch toward the
center of the diskette so the hole is covered.
Making Backup Copies
It is important to make copies of all your data and system
diskettes. Copy all diskettes that contain programs, such as the
original MS-DOS diskettes that come with your computer, and
only the copies. Store your original MS-DOS diskettes in a
use
Figure 3-7. 3'/2" Diskette & Write-Protect SW
Using Your Computer 3-15
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