light pen

noun

Definition of light pen

: a pen-shaped device for direct interaction with a computer through a cathode-ray tube display

Examples of light pen in a Sentence

writing with a light pen

First Known Use of light pen

1958, in the meaning defined above

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Time Traveler for light pen

Time Traveler

The first known use of light pen was in 1958

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Cite this Entry

“Light pen.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/light%20pen. Accessed 17 Jan. 2021.

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More Definitions for light pen

light pen

noun

English Language Learners Definition of light pen

computers : a device shaped like a pen that senses light signals and is used to work with information on a computer screen

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