COMPUTER HARDWARE COMPONENTS FUNCTIONS
COMPUTER MEMORY AND PROCESSING DEVICES
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Processing devices
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Pointing devices
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none of these
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both i and ii
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Detailed explanation-1: -Identify some of the main devices for inputting data into a computer such as: mouse, keyboard, trackball, scanner, touchpad, lightpen, joystick, digital camera, microphone. Any device which allows us to send data or instructions to the computer can be regarded as an input device.
Detailed explanation-2: -A pointing device, or sometimes called a pointing tool, is a hardware input device that allows the user to move the mouse cursor in a computer program or GUI operating system. Using a pointing device, you can point at or manipulate any object or text on the screen.
Detailed explanation-3: -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: -To put it simply, a mouse is a pointing device. This means that users can control the pointer on a computer display by using it. The touchpad on a laptop computer serves the same purpose as a mouse.
Detailed explanation-5: -A trackball mouse is a pointing device consisting of a ball held by a socket containing sensors to detect a rotation of the ball about two axes-like an upside-down ball mouse with an exposed protruding ball.