Question # 1

All of the following are Guided Communication media except

Choose an answer

Fiber-Optic Cable

Wire Cable

Coaxial Cable

Satellite-based , Microwave communication

Management of an operating system is handled by

Choose an answer

by interpreter

the supervisor program

utility program

the CPU

The mechanism for reading or writing data in a disk is called

Choose an answer

track

rorational delay

access arm

seek time

Computer operations are synchronized by.

Choose an answer

the CPU clock

megabytes

the binary system

E-time

Which of the following is increasing as computer technology progresses?

Choose an answer

speed

efficiency

hardware reliability

all of these are inceasing

In the course of a systems project, systems design

Choose an answer

follows systems analysis

follows development

precedes systems analysis

is the fourth phase

According to aborption law x+x.y=

Choose an answer

x

y

1 + x

1 + y

Which type of computer operates by directly counting numbers.

Choose an answer

special purpose

analog

digital

hybrid

Program maintenance means

Choose an answer

Maintaining a program exactly the way it was initially developed

Changing a program due to changes in the organization

Removing the errors from a program

Changing a program due to changes in the organization

Shift of a register by one bit to left in binary code is equivalent to.

Choose an answer

addition of 2

subtraction of 2

division by 2

multiplication by 2

Ethernet bus topologies used following Ethernet cabling

Choose an answer

Thin Net

Thick Net

Bold Net

a , b

Odd parity of a word can be conveniently tested by.

Choose an answer

OR gate

XOR gate

NOR gate

NAND gate

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

Choose an answer

0

10

15

20

The most commonly used output devices in a computer system are

Choose an answer

printers and monitors

disk drives and printers

disk drive and tape drives

tape drive and keyboards

The heart of a digital computer is....

Choose an answer

control unit

memory unit

logic unit

visual display unit

A person who gains illegal access to a computer system.

Choose an answer

hacker

worm

software

zapper

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

Choose an answer

higher density

DAT

read only media

removable hard disk cartridge

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

Choose an answer

CPU

disk

CRT

printer

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

Choose an answer

magnetic disk

magnetic drum

floppy disk

printer

Data gathering and data analysis take place.

Choose an answer

after the system survey

after system analysis

during system design

during evaluation

The time between the user's request and the computer's reply

Choose an answer

concurrent time

response time

allocation time

event time

Another name for a logic chip is.

Choose an answer

PROM

memory

microprocessor

ROM

Operating System involved by AT&T is

Choose an answer

Macintosh

Unix

OS/2

Windows

The first few working computers.

Choose an answer

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

If A and B are two 1-bit numbers, what logic gates will be required to test for A=B?

Choose an answer

NOR gate

EXCLUSIVE OR gate

EXCLUSIVE NOT gate

OR gate

The ___________ is the physical path over which a message travels.

Choose an answer

Single

Double

Protocol

Medium

The output will be one in case any input is one in the case of.

Choose an answer

OR gate

AND gate

NAND gate

NOT gate

Choose an answer

0

1

x

The transfer of data from one place to another is called

Choose an answer

Data processing

Data distribution

Data communication

Data encryption

Programming and testing are elements of.

Choose an answer

system analysis

system development

implementation

system design

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

Choose an answer

Light pen

Pointing stick

Trackball

Joystick

More Classes

Other Links

ECAT Computer Science Online Test MCQs With Answers

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer