Question # 1

_______ pointing devices has a vertical handle like a gearshift lever:

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Light pen

Pointing stick

Trackball

Joystick

An arrangement in which data is transmitted in both directions at a time is called

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Simplex

Full duplex

Half duplex

Multi-duplex

A device that inputs data by scanning letters and number is a

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keyboard

wand reader

mouse

diskette

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

Terminal is a.

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device to give power supply to computer

point at which data enter or leaves the computer

the last instruction in a program

any input/output device

A computer based system in which a telephone message is recorded in digital form and then forwarded to others is

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a teleconferencing

voice mail

a bulletin board

telecommuting

Comments in the program itself are part of

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compiling

translating

linking

documenting

The voice channel has a bandwidth of

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0 - 2 KHz

0 - 4 KHz

5 - 10 KHz

10 - 20 KHz

ASCII 8 bit code can represent maximum

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256 character

128 character

64 character

65536 character

Binary number 10101101 is equivalent in decimal form to.

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170

171

173

174

A dump terminal signifies that

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It has lower IQ compared to an intelligent terminal

It can not be used as an independent computer

It does not have a keyboard connected to it

It belongs to firs generation computers

Which of the following is not a category of network problems.

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Newsgroup problems

Physical problems

Electrical problems

Viruses

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

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EBCDIC

ASCII

both EBCDIC and ASCII

nethier EBCDIC and ASCII

The name for the screen clarity is :

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Resolution

Discrete

Pixel

LCD

Programs written to cause computers to function in a desired way are called.

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hardware

instruction

software

algorithm

The basic operation performed by the computer is called

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arithmetic operation

logic operation

storage and retrieval operation

all of above

The number A9D in Hexadecimal system is equivalent to which number in binary system.

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101010111101

101010011101

101110011101

101010011111

The commutative law in Boolean Algebra, where a, b and c are binary number is.

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a+0=a

a+1=1

a+b=b+a

a. (b+c) = a.b +a.c.

Most mainframe computers are basically.

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4 bit machines

8 bit machines

32 bit machines

16 bit machines

All of the following are Guided Communication media except

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Fiber-Optic Cable

Wire Cable

Coaxial Cable

Satellite-based , Microwave communication

First-generation computers were characterized by the use of the.

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microprocessor

vacuum tube

transistor

integrated circuit

To concept of using several small disk packs that work together as a unit is.

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CD-ROM

RAID

WORM

OMR

Personal computer users may wish to increase their hard disk storage capacity with.

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higher density

DAT

read only media

removable hard disk cartridge

A computer has very high speed, accuracy and reliability . Its intelligent quotient could be of the order of

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0

10

15

20

The cursor can be moved rolling this devices on a flat surface:

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mouse

trackball

want reader

interactive tablet

In the networking environment a network adapter card driver is needed for.

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Communication with other adapter cards on a network

Communication between the file server and the other computers on the network

Communication between different types of computers on a network

Communication between the adapter card and the computers operating system

A connection of same type of network is

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Bridge

Repeater

Gateway

Router

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

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6

32

64

128

A person who gains illegal access to a computer system.

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hacker

worm

software

zapper

The shortest period of time is a.

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milisecond

nanosecond

picosecond

microsecond

Another name for an operating environment is

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page

layer

shell

supervisor

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