what is the use of a light pen
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- A light pen is a computer input device in the form of a light-sensitive wand used in conjunction with a computer's cathode-ray tube (CRT) display.
- It allows the user to point to displayed objects or draw on the screen in a similar way to a touchscreen but with greater positional accuracy
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Light pen is used to select objects on the display screen. Light pen is only used with CRT monitors.
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