Question # 1

The number of inputs to full adder are

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1

2

3

4

The height of the wave is called :

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Oscillation

Amplitude

Signal

Frequency

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 gate is two level logic gate.

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OR gate

AND gate

EXCLUSIVE OR gate

NAND gate

A computer drive its basic strength from

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speed

accuracy

memory

all of above

The binary number 101000101011 is equal to the hexadecimal number

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A2D

C2D

A2B

B2C

A bit can be

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1 and 0

1 or 0

1 only

0 only

TIme-sharing of resources by users is usually.

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based on time slices

based on input

event-driven

operated by spooling

The fastest type of ADC is

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time interval

parallel

closed loop

successive

According to absorption law x. (x+y) =

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x

y

1+x

1+y

Which of the following will happen when data is entered into a memory location

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It will change the address of the memory location

It will add to the content of the location

It will not be fruitful if there is already some data in that location

It will erase the previous content

Pick up wrong logical expression

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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 speed at which a disk can find data being bought is called

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access time

data transfer rate

direct time

cylinder time

An interfact is basically a component that

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test the system

corrects the errors in program

allows two incompatible entities with one another

enhances the capability of a system/equipment

The physical parts of a computer system are called.

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software

input

output

hardware

A network that covers large area, city, country and World is called

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LAN

WAN

Router

Bridge

The first few working computers.

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were all made by American scientists

were used almost exclusively for text processing

generally had black and white CRT screen

were, for the most part, developed for wartime uses

Pictures on a monitor are composed of tiny dots called.

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a pixels

CRTs

VDTs

elements

A storage medium which cannot support both direct-access and sequential-access application is.

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magnetic drum

hard disk

magnetic tape

floppy disk

Who invented the modem?

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IBM

DEC

AT&T information System, USA

Apple computers Inc

Project 802 defines standards for which layers of the OSI model?

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Application and Presentation layers

Physical an Date Link layers

Transport and Network layers

Network and Data Link layers

Storage of 1K means that it has following number of storage locations

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1000

964

1024

1032

The lowest level of programming language is

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nonprocedural language

assembly language

BASIC

machine language

Excess-3 code is known as

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Weighted code

cyclic redundancy code

algebraic code

self complementing

Electronic Numerical Integrator and Calculator (ENIAC machine) belongs to the

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first generation digital computer

second generation computer

third generation computer

fourth generation computer

Time scaling in analog computers is done to make them.

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operate fast

operate slowly

operate in time delay mode

either operate fast or operate slowly

1 byte consists of

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4 bits

8 bits

16 bits

32 bits

Take-a-turn time-sharing

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spooling

interfacing

round-robin-scheduling

prompting

Which input device is often attached to laptop computers.

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trackball

inscriber

graphics display

wand reader

Software to persue the Internet

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Gateway

Videoconferencing

Browser

Teleconferencing

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