Mice A mouse controls a pointer that is displayed on the monitor. The mouse pointer usually appears in the shape of an arrow. Some mice have a wheel button that rotates to scroll through information on the monitor, optical mouse is the most widely used, A cord. less or wireless mouse uses radio waves or infrared light waves. Three devices similar to a mouse a trackballs, touch pads, and pointing sticks. Touch Screens Touch screens allow users to select actions by touching the screen with a finger or penlike device. Multitouch screens accept multiple-finger commands