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InterviewSolution
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Write about the light pen? |
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Answer» A light pen is a pointing device shaped like a pen and is connected to a monitor. The tip of the light pen contains a light-sensitive element which detects the light from the screen enabling the computer to identify the location of the pen on the screen. Light pens have the advantage ofedrawing’ directly onto the screen, but this becomes hard to use, and is also not accurate. |
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