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Which is considered a direct entry input device?

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Important Questions on Computer Knowledge

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Which of the following is required when more than one person uses a central computer at the same time?

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Which of the following is used only for data entry and storage, and never for processing?

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Which most popular input device is used today for interactive processing and for the one-line entry of data for batch processing?
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An input/output device at which data enters or leaves a computer system is:
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Multi-user systems provided cost savings for small business because they use a single processing unit to link several: 

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Which one of the following is user-programmable?

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Which of the following requires large computer memory?