Question # 1

________ is component of data communication.

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Sender

Receiver

Encoder and Decoder

All

The data obtained by counting are called

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digital data

continuous data

analog data

discrete data

The time require for the access arm to get into position over a particular track is.

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rotational delay

data transfer

seek time

head switching

Coaxial and fiber cables are examples of media

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Guided

Router

Un-guided

Simplex

A network of geographically distant computers and terminals is called a.

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bus

WAN

gateway

LAN

Implementation of a program involves

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Compilation of the program

Debugging the program

Testing the program with data

All of the above

Most of the errors in computer system could be attributed due to

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virus

programming errors

hardware problems

data entry errors

ASCII 7 bit code can represent maximum

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265 character

128 character

64 character

65536 character

The transfer of data from one place to another is called

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Data processing

Data distribution

Data communication

Data encryption

A computer is capable of performing almost any task provided that it can be

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coded

memorized

analyzed

reduced to a series of logical steps

Boolean algebra use which of the following to represent arithmetic quantities.

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decimal digits

exponents

binary bits

fractions

A conceptual error in a program is a/an

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Logical error

Execution error

Syntactical error

None of the above

__________is an example of packaged software

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MS word

Front page

MS-Access

All

A digital computer system consists of a central processing unit interfaced with

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input devices

auxiliary storage

output devices

all of above

A digital computer performs its computation by

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mechanical means

analogy

guessing

counting

A bootstrap is.

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a memory device

a device to support the computer

a small initialization program to start up a computer

an error correction technique

For printing of large drawings and images we use

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Laser printer

Plotter

Line printer

Dot matrix printer

A network type in which all computers have equal status.

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communication links

peer to peer

WAN

direct connect

Distribution data entry means that data can be

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Entered at different location where it originates

Sent to different locations from a central place

Access from different places known as distribution points

Distributed through a network

Which one is not network topology?

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Star

Ring

Circle

Bus

A computer is capable of performing almost any task, provided that it can be.

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coded

memorized

analyzed

reduced to a series of logical steps

Which of the following does not represent an I/O devices?

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speaker

OCR

Joystick

ALU

The term 'baud' is a measure of the

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speed at which data travels over a communications line

capacity of memory

error detection/correction capability of computer system

instruction execution time

Four-digit binary number 1011 is represented in the decimal system by.

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7

9

11

13

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

1 byte consists of

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4 bits

8 bits

16 bits

32 bits

Information travels between components of a computer through groups of wires called.

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cards

busses

slots

ports

To send data, instruction and information you need a

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Sending device

Receiving device

Channel device

Communication signal

Page frames are typically

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1K or 2K bytes

3K or 4K bytes

2K or 3K bytes

2K or 4K bytes

Functions can perform by using mouse

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Double-click

Drag and Drop

Right-click

All of the above

The cabling joining the Hub is called

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Spine

RS 45 connector

RS 232 serial port

Modem card

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