Compaq Armada 4200 Reference Manual page 16

Keyboard Components
Ref Component
.
7 Arrow keys
8 Stereo speakers
9 Pointing device
2-6 Taking a Look at the Computer
Continued
Function
Allow cursor to move up, down, right, left.
Produce high-quality stereo sound.
The touchpad moves the pointer around the
screen and functions as a portable mouse.