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Computer Basic Information

Computer Basic Information
A hand-held device for optically reading bar codes on goods, labels & shelves is

None of these
Wand
Touch tablet
Light pen
Mouse

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Computer Basic Information
The latest PC keyboards use a circuit that senses the movement by the change in its capacitance. What are these keyboards called?

None of these
Qwerty keyboards
Mechanical keyboards
Capacitance keyboards
Dvorak keyboards

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Computer Basic Information
Which of the following are the building blocks of all the circuits in a computer.

Instructions
None of these
Logic gates
Circuit switch
Logical Operators

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Computer Basic Information
One million bytes of information is abbreviated as

None of these
KB
Bit
MB
GB

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Computer Basic Information
Time during which a job is processed by the computer is

Down time
Real time
Execution time
None of these
Delay time

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Computer Basic Information
Which of the following storage and retrieval methods would be well suited to your processing requirements if you only need to retrieve records one at a time and there is no fixed pattern to the requests for data and records?

sequential
indexed sectors
indexed direct
direct
None of these

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