Question # 1

At the beginning of the instruction cycle, the contents of the Instruction Register specify.

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Operand for the instruction being executed

Instruction itself

Operand for the instruction to be executed next

None of above

The unit that transforms data into information is the.

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CPU

ROM

DVD

OCR

The Media Access Control sub layer resides in which layer

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Data link

Physical

Network

Transport

The term word in computer terminology refers to.

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bits formed into groups

coded instructions

memory size

language used

The central processing Unit (CPU) comprises of.

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memory, VDU , and printer

input device , output device and memory

store , arithmetic and logic unit and control unit

software, hardware and power supply unit

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

The entire computer is coordinated by

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The ALU

the accumulator

arithmetic operators

the control unit

A connection of same type of network is

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Bridge

Repeater

Gateway

Router

Bandwidth requirement for human voice is

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100000 to 200000

5000 to 20000

20000 to 30000

25000 to 50000

The card which is used for Internet

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Network card

Modem card

VGA card

Graphic card

The highest layer of OSI model is

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Physical layer

Network layer

Presentation layer

Application layer

Network topologies are categorized into the following basic types

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Bus, Ring

Star , Tree

Mesh

All of the above

The term "time slicing" need not apply to.

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On line transacting processing

Batch processing

Real time processing

None of the above

A computer can be defined as an electronic device that can: (choose the most precise definition).

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carry out logical functions

carry out arithmetical operations

accept and process data using a set of stored instructions

present information on a VDU

Wrong Statement.

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Information stored in RAM can be changed by over writing it

Information stored in ROM cannot be changed by over writing it

Information can be stored in any location of RAM

Computer main memory can be accessed only sequentially

If one or more computers are connected to a central Hub, this topology is called

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Ring topology

Bus topology

Star topology

Modulation

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

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