Computer Questions

Q:

The primary purpose of an operating system is ?

A) To allow people to use the computer B) To make computers easier to use
C) To keep systems programmers employed D) To make the most efficient use of the computer hardware
 
Answer & Explanation Answer: D) To make the most efficient use of the computer hardware

Explanation:

The primary purpose of an operating system is to make the most efficient use of the computer hardware.

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29 13701
Q:

Microprocessors as switching devices are for which generation computers?

A) Fourth generation B) Third generation
C) Second generation D) First generation
 
Answer & Explanation Answer: A) Fourth generation

Explanation:

Microprocessors are used in the computers of fourth generation computers. Personal microcomputers were possible due to the microprocessors.

 

Microprocessors further revolutionized the development of computers.

 

The first microprocessor called Intel 4004 was developed by American Intel Corporation in 1971.

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27 13687
Q:

The default header for a worksheet is

A) The date and time B) User name
C) Date & Time D) None of the above
 
Answer & Explanation Answer: D) None of the above

Explanation:

MS Excel is the widely used worksheet in computer applications. We can add what we want in the header and footer of MS Excel sheets.

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18 13543
Q:

_______ uses laser technology to store large amount of information

A) Floppy disk B) CD-ROM
C) Hard disk D) ED-ROM
 
Answer & Explanation Answer: B) CD-ROM

Explanation:
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Q:

Codes consisting of bars or lines of varying widths or lengths that are computer readable are known as ____

A) An AsCII code B) A magnetic tape
C) AN OCR scanner D) A Bar code
 
Answer & Explanation Answer: D) A Bar code

Explanation:
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Q:

Computer networks constituting the internet are connected by telephones, underwater cables and _____________

 

A) e-mail B) e-books
C) Public telephone booths D) Satellites
 
Answer & Explanation Answer: D) Satellites

Explanation:
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Q:

___________ provides network backbone and e-governance support to government bodies in India.

 

A) NIC B) NASSCOM
C) Department of Information Technology D) State Bank of India
 
Answer & Explanation Answer: A) NIC

Explanation:
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Q:

Which operation is not performed by computer?

A) Understanding B) Controlling
C) Processing D) Inputting
 
Answer & Explanation Answer: A) Understanding

Explanation:

A computer can perform inputting, processing and cotrolling but it can't perform understanding as it is has no brain. It can't earn from its previous experiances.

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