Apple M9848LL User Guide - Page 47

Getting More Information, Understanding Sudden Motion Sensor, Using Your Battery

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Getting More Information  For instructions on using DVD Player, choose Help > DVD Player Help from the menu bar at the top of the screen.  For information about using iTunes to record music files on a CD-R or CD-RW disc, choose Help > "iTunes and Music Store Help" from within iTunes. Understanding Sudden Motion Sensor Your iBook has Sudden Motion Sensor technology, built-in protection for the hard disk that is designed to help prevent disk failures if the computer is dropped or experiences severe vibration. In general, Sudden Motion Sensor protection does not change hard disk performance during regular iBook operation. Occasionally, unusually strong vibrations might activate the Sudden Motion Sensor technology at a time when your iBook is writing or reading data intensively (such as when you are playing or recording video or audio). If you notice dropped frames or sound elements, make sure that your iBook is in a stable environment without vibration or abrupt movement. Using Your Battery When the external power adapter is not connected, your computer draws power from its battery. The length of time that you can run your iBook off one battery charge varies, depending on the applications you use and external devices connected to your iBook. Turning off features such as AirPort Extreme or Bluetooth wireless technology when not in use can help to conserve battery charge. For more information about using your battery, see "Charging a Battery" on page 49. You can determine the charge left in your battery by looking at the battery level indicator lights on the battery itself. Press the button next to the lights, and the lights glow to show how much charge is left in the battery. The indicator lights remain lit for a few seconds after you press the button. You can check the charge with the battery in or out of the iBook. If your battery runs low while you are working, attach your power adapter and let the battery recharge. If you want to replace the battery with a charged one, attach the power adapter, shut down your iBook, and replace the battery. If you replace the battery without the power adapter attached, you can lose information and settings such as the date and time. Chapter 3 Using Your iBook G4 47

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Chapter 3
Using Your iBook G4
47
Getting More Information
Â
For instructions on using DVD Player, choose Help > DVD Player Help from the menu
bar at the top of the screen.
Â
For information about using iTunes to record music files on a CD-R or CD-RW disc,
choose Help > “iTunes and Music Store Help” from within iTunes.
Understanding Sudden Motion Sensor
Your iBook has Sudden Motion Sensor technology, built-in protection for the hard disk
that is designed to help prevent disk failures if the computer is dropped or experiences
severe vibration.
In general, Sudden Motion Sensor protection does not change hard disk performance
during regular iBook operation. Occasionally, unusually strong vibrations might activate
the Sudden Motion Sensor technology at a time when your iBook is writing or reading
data intensively (such as when you are playing or recording video or audio). If you
notice dropped frames or sound elements, make sure that your iBook is in a stable
environment without vibration or abrupt movement.
Using Your Battery
When the external power adapter is not connected, your computer draws power from
its battery. The length of time that you can run your iBook off one battery charge varies,
depending on the applications you use and external devices connected to your iBook.
Turning off features such as AirPort Extreme or Bluetooth wireless technology when
not in use can help to conserve battery charge. For more information about using your
battery, see “Charging a Battery” on page 49.
You can determine the charge left in your battery by looking at the battery level
indicator lights on the battery itself. Press the button next to the lights, and the lights
glow to show how much charge is left in the battery. The indicator lights remain lit for
a few seconds after you press the button. You can check the charge with the battery in
or out of the iBook.
If your battery runs low while you are working, attach your power adapter and let the
battery recharge. If you want to replace the battery with a charged one, attach the
power adapter, shut down your iBook, and replace the battery. If you replace the
battery without the power adapter attached, you can lose information and settings
such as the date and time.