Apple G4 17-inch - Manual (Page 21)

Getting to Know Your Computer 21
¤ Brightness controls
Increase or decrease the brightness of your PowerBook display.
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Volume controls
Increase or decrease the volume of the sound coming from the built-in speakers and sound
output port.
Keyboard illumination controls
Increase or decrease the brightness of your keyboard illumination.
Num Lock key
Activate the numeric keypad embedded in the PowerBook keyboard. When the numeric
keypad is locked, a green light glows on the keyboard lock key.
Video Mode Toggle key
Use this key to switch between dual display mode and video mirroring mode.
Media Eject key
Press and hold this key to eject a CD or DVD disc. You can also eject a disc by dragging its
desktop icon to the Trash.
Microphone
Record sounds directly on your PowerBook hard disk with this built-in microphone
(located under the left speaker cover).
Built-in speakers (2)
Listen to music, movies, games, and multimedia.
Function (Fn) key
Press and hold this key to activate the function keys (F1 to F12).
Sleep light indicator
A white light pulsates when the PowerBook is in sleep.
Display release button
Push this button to release your display and open your PowerBook.
Trackpad
Move the pointer on the PowerBook display.
Slot-loading SuperDrive
Your SuperDrive can read CD-ROM discs, Photo CDs, standard audio discs, DVD-ROM and
DVD-R discs, DVD movies, and other kinds of media. It can also write music, documents,
and other digital files on CD-R, CD-RW, and DVD-R discs.
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Power button
Turn your PowerBook on and off or put it to sleep.
AirPort antenna window
With an optional AirPort Base Station, or other wireless hub, connect to the Internet
wirelessly.