Computer Basic Information
A device invented by Dr. Bobeck in 1966, for mass storage of data is

Magnetic disk
None of these
Magnetic tape
Punched paper tape
Magnetic bubble storage

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

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

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