Question # 1

Which of the following is a Correct definition of volatile memory?..

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It loses its contents at high ambient temperatures

Its contents are lost on failure of power supply

It has to be kept in air tight boxes always

It is the latest type of bubble memory

The process of allocating main memory to programs and keeping the programs in memory separate from each other is called

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memory protection

memory management

virtual storage

real storage

Octal number system uses the digit 0 to 7. The equivalent of Octal 126 in decimal system is.

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80

82

86

84

Which of the following is not hardware

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Magnetic tap

Printer

VDU terminal

Assembler

Logical security for on-line systems is achieved primarily by ________ and authorization codes

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MIS

Passwords

Tactical

None of the above

For printing of large drawings and images we use

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Laser printer

Plotter

Line printer

Dot matrix printer

Pick out the wrong statement about computers.

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it is a logical machine

it can access any piece of information that it has in store

it is devoid of emotion, has no feelings or instincts

it approaches its information is unrestricted manner

For calculating taxes, input to a computer could be.

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numbers representing wages

income

tax tables

all of the above

Error messages provided by a compiler are called

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bug

diagnostic

translation

mistakes

_________ is not an application software

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internet

Device drive

Games

Multimedia software

The complex set of electrical circuitry that executes program instructions is called the.

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register

central processing unit

accumulator

bus line

Word is 16 bits is

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65536

64526

32526

34526

Computer output produced as small film images is called.

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OCR

COM

LCD

OMR

The signals produced by a computer or terminal to be sent over phone lines must be converted to.

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modems

analog signals

digital signals

microwave

A conceptual error in a program is a/an

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Logical error

Execution error

Syntactical error

None of the above

Is Secondary storage device

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CD-ROM

ROM

Cache

RAM

Which of the following is not a component of telecommunications?

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sender

office device

medium

receiver

A letter, number, or a special character is represented by a.

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bit

kilobyte

byte

megabyte

Assigning more sector to outer hard disk is called

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zone recording

randomizing

sectoring

data transfer

The most powerful computers are

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Supercomputer

mainframe computers

super minis

super micros

If electrical power supply to a computer system is inadvertently disrupted, the serious damage would occur to.

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CPU

disk

CRT

printer

The reason why computers have been designed to use binary numbers is.

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computer circuits have to handle 2 binary digits rather than 10

electronic components, by their very nature, operate in a binary mode

everything that can be done with a base of 10 can also be done in binary

all of the above

Which of the following is termed ad minimum error code?

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Binary code

Gary code

Excess 3-code

Octal code

A graph prepared by a computer.

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Is its output

Is the piece of information to user

Is a hard copy

All of the above

An OR gate has 6 input. The number of input words in its truth table are.

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6

32

64

128

The binary number 10011101 is equal to the hexadecimal number.

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9E

9F

9D

FF

The card which is used for Internet

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Network card

Modem card

VGA card

Graphic card

If one or more computers are connected to a central Hub, this topology is called

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Ring topology

Bus topology

Star topology

Modulation

Which of the following gate is two level logic gate.

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OR gate

AND gate

EXCLUSIVE OR gate

NAND gate

A bar code reader is an example of a(n).

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processing device

storage device

Input device

output device

The most commonly used character code/s transmission is/are

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EBCDIC

ASCII

both EBCDIC and ASCII

nethier EBCDIC and ASCII

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