Question # 1

The different memory locations are identified by hexadecimal numbers called.

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ASCII code

bytes

BCD numbers

addresses

During E-time the ALU..

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examines the instruction

enters the instruction

executes the instruction

elicts the instruction

Transmit data in the form of light is called

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Fiber glass

UTP

Color glass

None

The process of executing several programs simultaneously by the use of more than one processing unit is called.

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Multiprogramming

Time sharing

Multiprocessing

Batch processing

Network topologies are categorized into the following basic types

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Bus, Ring

Star , Tree

Mesh

All of the above

The highest layer of OSI model is

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Physical layer

Network layer

Presentation layer

Application layer

The function of an OP code is.

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To instruct the CPU

To translate a mnemonic

Operate the I/O devices

To act as a buffer

A search engine is

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A software to search for engines

A device search for motor engine

A website that sells products and services

A website that look through databases for matching criteria

The unit that transform data in informaion is the

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CPU

ROM

DVD

OCR

How many pairs of computers can simultaneously communicate on Ethernet LAN

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1

3

Multiple

4

Each location in primary storage is assigned a unique.

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data

field

name

address

Pick out the correct definition of buffer.

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Buffer is a hardware device that stores data outside the CPU

Buffer is that portion of the CPU memory which stores program instructions

Buffer is a temporary storage between the CPU memory and a peripheral device

Buffer is a device to convert input data into a computer readable form

The heart of the digital computer is

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control unit

memory unit

logic unit

visual display unit

IEEE 802.3 is

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Device Name

Protocol

Topology

None

The entire computer is coordinated by

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The ALU

the accumulator

arithmetic operators

the control unit

The business conducted with the help of computer network is called

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E-commercial

E-commerce

E-comunication

Nothing

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ECAT Computer Science Chapter 2 Digital Computer Fundamentals Online Test MCQs With Answers

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