Question # 1

Following devices are used in simplex mode

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Radio

Television

a , b

Multiplexers

Rearranging of data in sequence is called

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updating

editing

batching

sorting

A group of electronic, magnetic, or mechanical devices that store data is called

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register

address

program

software

Which of the following topologies is passive?

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Star topology

Ring topology

Bus topology

Hybrid topology

The output of a sequential circuit depends upon

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present input

past inputs

both a and b

none of a and b

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

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Newsgroup problems

Physical problems

Electrical problems

Viruses

Data communication requires only a :

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Sender

Receiver

Transmission Medium

All of the above

A disk pack withing a sealed data module is a.

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Backup unit

Winchester

diskette

CD-ROM

Alphanumeric characters are expressed in terms of binary codes. In ASCII (American standard Code for Information Interchange) each character is represented as a

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8 bit code

4 bit code

5 bit code

7 bit code

Which of the following variable name is legal?

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PAK 123

A * B

COMPUTER

A/B

Which of the following cable is comprised of two separate insulated copper wires that are twisted?

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Fiber optics

Twisted pair wire

coax

Submarine

A connection of same type of network is

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Bridge

Repeater

Gateway

Router

Who is regarded as the father of computers

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John Napier

Pascal

Charles Babbage

Hollerith

The computer programe consists mainly the following number of parts

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2

3

4

5

Data is represented on a computer by means of a two-state on/off system called

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the octal system

the binary system

a word

ROM

Identify the legal FORTRAN arithmetic assignment statement?

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X = a+b +1

0.75 = A - B^c

SN - a * (1-r **n) / (1 - r)

NET + PR = SALE - COST

Which of the following does not support I/O devices

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speaker

OCR

joystick

ALU

The technique in shared systems that avoid interspersed printout from several programs is

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paging

queuing

slicing

spooling

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

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bus

WAN

gateway

LAN

During E time the ALU

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examines the instruction

enters the instruction

executes the instruction

elicits the instruction

The digits used for hexadecimal number system are.

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A through Z

1 through 16

0 through 15

0 through 9 and A through F

According to aborption law x+x.y=

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x

y

1 + x

1 + y

All of the following are Guided Communication media except

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Fiber-Optic Cable

Wire Cable

Coaxial Cable

Satellite-based , Microwave communication

CPU stand for:

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Centre Product unit

Central Programming Unit

Control Program Unit

Central Processing Unit

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

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decimal digits

exponents

binary bits

fractions

In a computer system, which of the following has largest number of mechanical components and thus most unreliable.

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magnetic tape

magnetic drum

floppy disk

printer

The hexadecimal number system is widely used in analyzing and programming in.

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analog computers

binary computers

decimal computers

micro computers

In the computer world, the word digital means information that is in.

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discrete units

units that can be counted

continuous , smooth form

a and b

Ethernet bus topologies used following Ethernet cabling

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Thin Net

Thick Net

Bold Net

a , b

The clock speed of a computer is measured in.

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megahertz

kilobytes

megabytes

binary digits

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