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Computer Basic Information

Computer Basic Information
Computer virus is a ___

Bacteria
Software
Freeware
Hardware

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

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

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Computer Basic Information
Primary storage is _____ as compared to secondary storage.

Fast and inexpensive
None of these
Slow and expensive
Fast and expensive
Slow and inexpensive

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Computer Basic Information
What does a system bus do?

carries out instructions
allows the user to communicate with the computer
connects various components within the computer
None of these
stores data and instructions

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Computer Basic Information
The earliest device that qualifies as a digital computer is

EDSAC
EDVAC
Abacus
ENIAC
None of these

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Computer Basic Information
The output of a 2 input OR gate is 0 only when its

either input is 1
either input is 0
both inputs are 1
both inputs are 0
None of these

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