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Input- Pen-Input

The Light pen

This is a light sensitive input device which when it touches the screen detects
the presence or absence of light. It is used to select an entry or indicate a
position.

Uses of a Light Pen-:

1. To choose from a list of options on a screen by pointing at the options

required.

2. To produce drawings on a screen by using a special
function pad and a key board to indicate what the
computer should draw and the pen to point where it should
be drawn.

The Digitizer Pen

A digital pen is an input device which captures the handwriting or brush strokes
of a user, converts handwritten analog information created using "pen and paper"

into digital data, enabling the data to be utilized in various applications. For
example, the writing data can be digitized and uploaded to a computer and
displayed on its monitor.