Touchpad
Most touchpads have the function of tapping, which imitates the left-click button on a mouse. New models of touchpads often do more things because they can respond to the pressure of more than one finger. This is called multi-touch and makes it possible to do things like scroll though, zoom in and out, and rotate a page or part of the screen. The user can choose and change which functions happen if the user does certain moves. For example, the normal function for tapping on the pad is the left-click on the mouse. The user can change it in the settings section to the right-click of the mouse, if the user likes it better.