Conserving battery power .................................................................................................. 40
Storing a battery ................................................................................................................ 40
Replacing the battery ......................................................................................................... 40
Using external AC power .................................................................................................................... 41
Testing an AC adapter ....................................................................................................... 41
Using a USB device ........................................................................................................................... 42
Connecting a USB device .................................................................................................. 43
Removing a USB device .................................................................................................... 43
Using optical drives ............................................................................................................................ 46
Inserting an optical disc ..................................................................................................... 47
Removing an optical disc ................................................................................................... 48
8 Maintaining your computer .......................................................................................................................... 49
Cleaning your computer ..................................................................................................................... 50
Protecting the computer ..................................................................................................................... 52
Using passwords ................................................................................................................................ 52
Hibernation ....................................................................................... 39
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