Computer Basic Information
The function of CPU is

None of these
to communicate with the operator
to read, interpret and process the information and instruction
to provide external storage of text
to provide a hard copy

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Computer Basic Information
In a punched card system, data is processed by a

keypunch machine, sorter, and posting machine
accounting machine, keypunch machine, and sorter
accounting machine, posting machine, and billing machine
None of these
sorter, posting machine, and billing machine

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