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Computer Basic Information

Computer Basic Information
When did IBM close the last of its punched card manufacturing plant?

None of these
November, 1979
December, 1984
June, 1989
March, 1982

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Computer Basic Information
What is the byte capacity of a drum which is 5 inch high, 10 inch diameter, and which has 60 tracks per inch and bit density of 800 bits per inch?

942000 bytes
192300 bytes
14384 bytes
9712478 bytes
None of these

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Computer Basic Information
Which of the following refers to the memory in your computer ?

DSL
LAN
RAM
USB

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Computer Basic Information
Which method is of reading the characters & providing input to a computer.

Optical character reader
None of these
Card punch
Magnetic ink character
Punched paper tape

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Computer Basic Information
What is object of UPS ?

All of the listed here
Provides backup power
To increase the speed of a computer
Using for storage

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Computer Basic Information
What is the shortcut key to "Undo" the last action in a document?

Ctrl + U
Ctrl + Z
Ctrl + X
None of these
Ctrl + Y

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