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Light pen

 Home Mathematics History of mathematics History of computer science History of software History of human–computer interaction
 0 By others on same topic  0 Discussions  1970-01-01  See my version
A light pen is a pointing input device used to interact with a computer screen. It resembles a pen and is typically equipped with a light sensor at its tip. When a user points the light pen at the screen, the sensor detects the light emitted from the screen (often in the form of a specific type of phosphorescence) to determine its position.

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  1. History of human–computer interaction
  2. History of software
  3. History of computer science
  4. History of mathematics
  5. Mathematics
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