Computer | General Knowledge Questions and Answers | General Knowledge Free Online-Tests | LucentBlackBoard

01.

Windows is ______________

A.	An operating environment	B.	An operating system
C.	An interface	D.	Hardware

Answer and Explanation

Answer: An operating system

Explanation:
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02.

The decimal equivalent of hexadecimal number A2C is

A.	2814	B.	2674
C.	2604	D.	2786

Answer and Explanation

Answer: 2604

Explanation:
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03.

The computer memory which is empty is

A.	RAM	B.	ROM
C.	Floppy disk	D.	Mouse

Answer and Explanation

Answer: ROM

Explanation:
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04.

Binary overloaded operators are passed by __________ arguments

A.	Two	B.	One
C.	Three	D.	Four

Answer and Explanation

Answer: Two

Explanation:
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05.

Which of the following better define UNIX?

A.	Real time sharing system	B.	Batch processing operating system
C.	Time sharing operating system	D.	Memory sharing operating system

Answer and Explanation

Answer: Time sharing operating system

Explanation:
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06.

Nibble contains

A.	16 bits	B.	8 bits
C.	32 bits	D.	4 bits

Answer and Explanation

Answer: 4 bits

Explanation:
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07.

The binary number 110011 in octal system is represented as

A.	63	B.	36
C.	51	D.	45

Answer and Explanation

Answer: 63

Explanation:
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08.

____________ is currently the smallest and least costly computer.

A.	Microcomputer	B.	Supercomputer
C.	Mainframes	D.	None of the above

Answer and Explanation

Answer: Microcomputer

Explanation:
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09.

The means of storing a large amount of data outside the main memory is

A.	Accumulator	B.	Primary store
C.	Auxiliary store	D.	Secondary store

Answer and Explanation

Answer: Auxiliary store

Explanation:
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10.

CPU stands for

A.	Central programming unit	B.	Central program unit
C.	Central processing unit	D.	None

Answer and Explanation

Answer: Central processing unit

Explanation:
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11.

Can two methods have same name in Java?

A.	Yes	B.	No
C.	Depends on program	D.	Cannot be determined

Answer and Explanation

Answer: Yes

Explanation:
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12.

Who is the father of computer

A.	Charles Babbage	B.	Bill gates
C.	Steve jobs	D.	Hollerith

Answer and Explanation

Answer: Charles Babbage

Explanation:
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13.

A class that inherits a base class containing virtual function is called

A.	Derived	B.	Polymorphic
C.	Virtual	D.	Base

Answer and Explanation

Answer: Polymorphic

Explanation:
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14.

Which of the following is the scope resolution operator?

A.	::	B.	;
C.	<<	D.	>>

Answer and Explanation

Answer: ::

Explanation:
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15.

___________ is a single integrated circuit.

A.	Chip	B.	CPU
C.	Gate	D.	Motherboard

Answer and Explanation

Answer: Chip

Explanation:
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16.

e-commerce is an application of _____________

A.	LAN	B.	WAN
C.	Internet	D.	Intranet

Answer and Explanation

Answer: Internet

Explanation:
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17.

Virus is a ___________

A.	Software	B.	Hardware
C.	Chip	D.	Device driver

Answer and Explanation

Answer: Software

Explanation:
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18.

_________ is the heart of computer.

A.	CPU	B.	Memory
C.	I/O unit	D.	Disks

Answer and Explanation

Answer: CPU

Explanation:
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19.

Which of the following is sequence storage device?

A.	Magnetic tape	B.	Paper tape
C.	Magnetic disk	D.	a.) and b.)

Answer and Explanation

Answer: a.) and b.)

Explanation:
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20.

Which group does PIF editor belong?

A.	Games	B.	Accessories
C.	Main	D.	None

Answer and Explanation

Answer: Main

Explanation:
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