VDU is the most popular output device, usually called as monitor, which is used to display the text or other objects on the screen. It is used to display the images generated by the computer's video adaptor. It provides a way to you for communicating with the computer. The monitor is attached to the
video adaptor by a cable and the term monitor usually refers to a VDU. On the monitor, you can see the input data or information supplied to the computer, as well as the final result obtained after processing.
