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Computer Basic Information

Computer Basic Information
Computer virus is a ___

Freeware
Software
Hardware
Bacteria

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Computer Basic Information
Different components on the motherboard of a PC processor unit are linked together by sets of parallel electrical conducting lines. What are these lines called?

Connectively
Buses
Connectors
Conductors
None of these

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Computer Basic Information
Communication that involves computers, establishing a link through the telephone system is called

Microprocessing
All of these
Teleprocessing
Telecommunications
None of these

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Computer Basic Information
Arithmetic logic unit I.   perform arithmetic operations II.  store data III. perform comparison IV.  communicate with input devices from above the correct one is

II only
I only
I and III only
I and II only

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Computer Basic Information
The barcode which is used on all types of items, is read by a scanning device directly into the computer. What is the name of this scanning device?

OCR
Laser scanner
MICR
Wand
None of these

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Computer Basic Information
An operating system intended for use on microprocessor based systems that support a single user is

UNIX
CP/M
None of these
PC-DOS
MS-DOS

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