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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Touch screen
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Light pen
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Mouse
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None of the above
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Detailed explanation-1: -A stylus is a small pen-shaped instrument that is used to input commands to a computer screen, mobile device or graphics tablet.
Detailed explanation-2: -A mouse is called a pointing device because using it lets you move the mouse cursor and point to anything on the screen.
Detailed explanation-3: -The correct answer is a Light pen. 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-4: -The major pointing device is the mouse for the desktop computer and the touchpad for the laptop, although many road warriors bring along a mouse. Pointing sticks are available on some laptops, and a small number of users prefer trackballs over the mouse. See mouse, touchpad, trackball and pointing stick.
Detailed explanation-5: -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.