Computer Science · May / June 2021 · Paper 12 · Question 8
2210
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A keyboard is a type of input device that can be used to enter data into a computer. Complete the paragraph that describes one method of operation for a keyboard, using the most appropriate terms from the given list. Not all terms in the list need to be used. • Binary • Breaks • Calculated • Character • Circuit • Current • Information • Network • Press • Processor • Signal • Switch A keyboard has a key matrix underneath the keys. When a key is pressed, it presses a that completes a . This allows to flow. The location of the key pressed is . The location of the key pressed is compared to a map to find the value for the key that has been pressed. [6]
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