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Computer Basic Information

Computer Basic Information
The scrambling of code is known as:

Password-proofing
A firewall
Encryption
Scrambling

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Computer Basic Information
Which of the following is not an alternative name for primary memory?

Internal storage
Mass storage
Main memory
None of these
Primary storage

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Computer Basic Information
Viruses are called that because

They can copy themselves and spread.
They are viruses
Both A and B
None of these

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Computer Basic Information
In an information system, alphanumeric data normally takes the form of-

None of these
Numbers and alphabetical characters
Sentence and paragraph
Human voice and other sound

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Computer Basic Information
An optical input device that interprets pencil marks on paper media is

Punch card reader
Magnetic tape
O.M.R
Optical sacnners

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Computer Basic Information
Which of the following is true about primary storage?

It allows very fast access to data
It is relatively more expensive
It is a part of the CPU
All of these

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