Apple powerbook g4 manual Press and hold this key to activate the function keys F1-F12

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Brightness controls

Increase or decrease the brightness of your PowerBook display.

Volume controls

Increase or decrease the volume of the sound coming from the built-in speakers and sound output port.

Keyboard lock

Protect the internal components of your PowerBook by preventing the keyboard from being easily opened.

Num Lock key

Activate the numeric keypad embedded in the PowerBook keyboard. When the numeric keypad is locked, the keyboard lock glows green.

Media Eject key

Press and hold this key to eject a CD or DVD disc. You can also eject a disk by dragging its icon to the Trash.

Power button

Turn your PowerBook on and off or put it to sleep.

Slot-loading optical drive (DVD-ROM or optional CD-RW)

If you purchased your PowerBook with a DVD-ROM drive, it can read CD-ROM discs, Photo CDs, standard audio discs, DVD discs, DVD movies, and other kinds of media. If you purchased the optional CD-RW drive, it can read CDs and also write music, documents, and other digital files on CD-R and CD-RW discs.

Function (Fn) key

Press and hold this key to activate the function keys (F1–F12).

Keyboard release tabs

When you need to access the internal memory slots, pull these tabs down to release the PowerBook keyboard.

Microphone

Record sounds directly on your PowerBook hard disk with this built-in microphone (located under the speaker cover). You can also connect an external microphone to one of the USB ports or use a professional microphone that connects to a PC Card.

Security slot

Protect your PowerBook by connecting a security cable.

Sleep light indicator

A white light pulsates when the PowerBook is in sleep.

Trackpad

Move the pointer on the PowerBook display. With the Trackpad control panel, you can set the trackpad to double-click and select items directly instead of using the trackpad button.

Getting to Know Your Computer 19