The above picture is:-

The above picture shown is:-

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Each computer user has a special ______ and secret ____ to operate a computer.

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____________ is the most important section of the computer

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Keyboard is used to __________

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_________ is one of the chief output device of a computer.

The above picture shown is :-

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____________ monitors are more beneficial.

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__________ is used to open the desired programs and select instructions from a menu or list.

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Mouse was invented by ___________