Pen Input Devices
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-: i. To choose from a list of options on a screen by pointing at the options required. ii. 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. |
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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. |