Question # 1

The signal that the computer is awaiting a command from the user

Choose an answer

prompt

time slice

event

interrupt

NOS refers to

Choose an answer

network open system

booting

network operating system

round-robin scheduling

Computers that are used in consumer goods, such as cars, are called.

Choose an answer

enchanced

software

analog

embedded

What is the octal equivalent of the binary system :10111101.?

Choose an answer

675₈

275₈

572₈

573₈

A standardized business language is

Choose an answer

CODASYL

BASIC

COBOL

Ada

Programming and testing are elements of.

Choose an answer

system analysis

system development

implementation

system design

Boolean algebra is also known as.

Choose an answer

logical algebra

control algebra

switching algebra

programming algebra

The entire computer system is coordinated by.

Choose an answer

the ALU

the accumulator

the control unit

arithmetic operators

Tool to change PROM chips are called.

Choose an answer

chip kits

RAM burners

PROM burner

none of these

The basic operation performed by a computer is.

Choose an answer

arithmetic operations

logic operations

storage and retrieval operations

all of the above

Mainframe computers are capable of communicating with several users simultaneously by.

Choose an answer

using a terminal

using a supercomputer

using a workstation

timesharing

The complex set of electrical circuitry that executes program instructions is called the.

Choose an answer

register

central processing unit

accumulator

bus line

The major disadvantage of magnetic tapes is.

Choose an answer

cost

unreliability of store data

slow data recording

data is to be accessed sequentially

The instruction that tell the computer what to do are called.

Choose an answer

software

output

hardware

telecommunication

A string of binary digits treated as a unit is called a.

Choose an answer

bit

byte

word

character

Charles Babbage worked closely with ______ to develop his device.

Choose an answer

Ada Lovelace

Joseph-Marie Charles

Herman Hollerith Jacquard

Lord Byron

DASD refers to.

Choose an answer

disk storage

track

tape storage

sorting

Who is responsible for introducing the concept of stored program.

Choose an answer

Blaise Pascal

Herman Hollerith

Charles Babbage

John von Neumann

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

Choose an answer

analog computers

binary computers

decimal computers

micro computers

Rearranging data in a new sequence is known as.

Choose an answer

Updating

Batching

Sorting

Summarising

The type of modulation that changes the height of the signal is called.

Choose an answer

frequency

phase

amplitude

prephase

The function of an OP code is.

Choose an answer

To instruct the CPU

To translate a mnemonic

Operate the I/O devices

To act as a buffer

The fastest type of ADC is

Choose an answer

time interval

parallel

closed loop

successive

The output of a sequential circuit depends upon

Choose an answer

present input

past inputs

both a and b

none of a and b

A Terabyte represents about

Choose an answer

1 quadrillion bytes

1 trillion bytes

1 billion bytes

1 million bytes

An electronic device that accepts. process data and produces information is called

Choose an answer

input devices

computer

output devices

operating system

During E-time the ALU.

Choose an answer

examines the instruction

enters the instruction

executes the instruction

elicits the instruction

The term 'baud' is a measure of the

Choose an answer

speed at which data travels over a communications line

capacity of memory

error detection/correction capability of computer system

instruction execution time

The heart of the digital computer is

Choose an answer

control unit

memory unit

logic unit

visual display unit

The process of allocating main memory to programs and keeping the programs in memory separate from each other is called

Choose an answer

memory protection

memory management

virtual storage

real storage

Assigning more sector to outer hard disk is called

Choose an answer

zone recording

randomizing

sectoring

data transfer

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