HP ProBook 4540s - Top; Touchpad

Top
TouchPad
Component Description
(1) TouchPad on/off button Turns the TouchPad on and off.
(2) TouchPad zone Moves the pointer and selects or activates items on the
screen.
(3) Left TouchPad button Functions like the left button on an external mouse.
(4) Right TouchPad button Functions like the right button on an external mouse.
12 Chapter 2 External component identification