Digital tablet

This is an input device that enables you to enter drawings and sketches into the computer. A digitiging tablet consist of an electronic tablet and a cursor or pen a cursor (also called a puck) is a similar to a mouse, except that it has a window with cross hairs and pinpoint placements. And it can have as many as 16 buttons. A pen also called a (stylus) looks like a simple ball point pen.

Scanners

Scanner is a input device that can read text or illustration printed on paper and translate the information in to a form that the computer can use. A scanner works by digitizing an image – dividing it into a grid of boxes and representing each box with zero or one.