IBM PC 300PL Types 6862, Руководство пользователя

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Inserting and removing diskettes
To insert a 3.5-inch diskette, hold the diskette with the label facing up and
insert the end with the protective slide first. Push the diskette into the
diskette drive until the diskette clicks into place.
To remove the diskette, press the eject button and slide the diskette out of
the drive. Do not remove the diskette while the in-use light is on.
Write-protecting diskettes
It is possible to accidentally format a diskette or unintentionally write data
to it. Important information can be written over or lost. For this reason, it
is a good idea to write-protect important diskettes. You can read data from
a write-protected diskette, but you cannot erase or change the data.
Most 3.5-inch diskettes have a write-protect switch that can be used to
prevent data from being written to or erased from the diskette. If a 3.5-inch
diskette does not have a write-protect switch, it is permanently
write-protected.
The write-protect switch is located on the back of 3.5-inch diskettes.
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To allow writing to the diskette, slide the switch so the write-protect
window is covered.
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To prevent writing to the diskette, slide the switch so the write-protect
window is open.
Your computer also has a switch on the system board that when set to ON,
prevents writing to a diskette regardless of the position of the write-protect
switch on the diskette. See “Setting the diskette write-protect switch” on
page 78 for instructions for setting diskette write-protect on the system
board.
Chapter 3. Operating and caring for your computer
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