- This device is used by the operator to move a pointer freely on the computer screen so as to select operations or manipulate text or graphics.
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- Which device is used by a computer to display graphics and information on a video screen?
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- A device consisting of a number of mechanical buttons which the user presses to input characters to a computer.
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- This can also be called the brain of the computer.
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- Which device is used to print text and images on paper?
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- A device used for converting text and images into a digital format and storing it in a computer.
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- This device is guaranteed to provide power to a computer if there is a power failure.
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Unpredictable processing system
- A device for converting digital data into sound signals which can be transmitted over telephone wires. It is used for communication.
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- A small plastic disc used for the storage of digital data, originally developed for audio systems. What is it called?
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