COMPUTER HARDWARE COMPONENTS FUNCTIONS
COMPUTER OUTPUT DEVICES
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Graphics tablet
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Stylus
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Light pens
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Touch screen
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Detailed explanation-1: -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.
Detailed explanation-2: -A light pen is used as a receptor to scan different pixels of light sensitivity on the screen with the help of the CRT tube elements. An electronic device is connected with the light pen to draw the image of the object scanned from the CPU.
Detailed explanation-3: -It is used with any CRT-based display. These devices were in an initial form in order to highlight and manipulate an object on display. The CRT monitors scan the screen; therefore, the light pen functions well with CRT monitors.
Detailed explanation-4: -Keyboards, scanners, mouses, joysticks, light pens, scanners, and digital cameras are examples of input devices.