Dell Inspiron 8100 - Manual (Page 54)

The green lights located above the keyboard indicate the following:
l The light labeled turns on when you press to enable the numeric keypad.
l The light labeled turns on when you press to enable the uppercase letter function.
l The light labeled turns on when you press to enable the scroll lock function.
Track Stick
The track stick detects the pressure and movement of your finger for moving the cursor on the display and, along with the track stick buttons, provides full
mouse functionality.
Touch Pad
The touch pad detects the position of your finger over a touch-sensitive area and provides the computer with full mouse functionality.
Battery Bay
With a charged battery in this bay, you can use the computer without plugging it in to an electrical outlet.
Media Bay
You can install devices such as a CD drive, DVD drive, CD-RW and CD-R drive, second battery, or Dell TravelLite™ travel module in the media bay.
Touch Pad/Track Stick Buttons
These buttons correspond to the left and right buttons on a standard mouse.
Keyboard
The keyboard includes a numeric keypad as well as the Microsoft® Windows® logo key that supports the Windows operating systems.
Power Button
Press the power button to turn on the computer or to initiate standby mode.
If the computer stops responding, press and hold the power button until the computer turns off completely (this may take several seconds).
Microphone
The internal microphone allows you to record voice audio.
Volume Control Buttons
Increase or decrease the speaker volume with the volume control buttons. You can also change the speaker volume using key combinations:
l To increase the volume press, the <Fn> and the <Page Up> keys.
HINT: To turn off your computer, perform a Windows shutdown.