Input device

Logitech Cordless Trackman Optical Trackball mouseAny hardware device that sends data to the computer, without any input devices, a computer would only be a display device and not allow users to interact with it, much like a TV. To the right is a Logitech trackball mouse, an example of a type of input device. Below is a full listing of all the different types of computer input devices found on a computer.

Also see: HID, Input, Input/output device, Keyboard definitions, Mouse definitions, Output device, Pointing device