What Is a Light Pen?

Answer

A light pen is a pointing device shaped like a pen that is connected to a Visual Display Unit. It allows the user to point to displayed objects, or draw on the screen in a similar way to a touch screen but with greater positional accuracy. The device became moderately popular during the early 1980s.
Q&A Related to "What Is a Light Pen"
A light pen is a computer input device in the form of a light-sensitive wand used in conjunction with a computer's CRT TV set or monitor. It allows the user to point to displayed
http://wiki.answers.com/Q/What_is_a_light_pen
1. Shine the CGA light pen on the whiteboard or another area you wish to illuminate. For example, point it at the different parts of a guidebook to help you follow through the process
http://www.ehow.com/how_7785998_read-cga-light-pen...
light pen: (computer science) a pointer that when pointed at a computer display senses whether or not the spot is illuminated
http://www.kgbanswers.com/what-is-a-light-pen/1663...
Have you heard of the Sharpie Liquid Pencil? They just came out this month, I believe. It uses erasable liquid graphite. I just got two of them about a week ago, and I fell in love
http://www.quora.com/Pens/Whats-the-best-eraseable...
3 Additional Answers
Ask.com Answer for: what is a light pen
light pen
NOUN [COMPUTERS.]
1.
a hand-held light-sensitive device used for pointing at characters or objects on a CRT in order to make or modify drawings or to indicate functions to be performed.
Source: Dictionary.com
A light pen is a pointing device for a computer. It allows the user to draw on the screen as if he or she was drawing a picture with a normal pen on a piece of paper.
A light pen is an input device that allows a computer user to interact directly with the computer display. The light pen detects which display pixel the user is pointing at. That information is transmitted to the computer.
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