computer MCQs - 9th class Chapter 01 Mcqs

1

What is the primary purpose of a system?

A

To achieve a common goal

B

To work independently

C

To create new systems

D

To provide entertainment

2

Which concept is fundamental to describing a system?

A

Its objective

B

Its color

C

Its price

D

Its age

3

A thermostat maintaining a set temperature is an example of what kind of objective?

A

Achieving specific goals

B

Information processing

C

Supporting other systems

D

Data collection

4

What does the environment of a system include?

A

Everything external that interacts with it

B

Only the internal components

C

The system's power source

D

The system's software

5

What term describes an environment that can change independently of the system's output?

A

Dynamic

B

Static

C

Deterministic

D

Closed

6

Natural systems are defined as those that:

A

Exist in nature without human intervention

B

Are created by humans

C

Only exist in laboratories

D

Are purely theoretical

7

A galaxy is an example of which type of system?

A

Physical System

B

Chemical System

C

Biological System

D

Psychological System

8

The formation of water (H2O) from hydrogen and oxygen atoms is an example of what?

A

A chemical system

B

A physical system

C

A biological system

D

An engineering system

9

Which of the following is an example of an artificial system?

A

A screw gauge

B

A forest

C

The solar system

D

A human brain

10

What is the main purpose of a knowledge system?

A

To capture, manage, and retrieve information

B

To build physical structures

C

To transport goods

D

To generate electricity

11

MySQL and MongoDB are examples of what type of knowledge system?

A

Databases

B

Logic systems

C

Mathematical formulas

D

Information Management Systems

12

Civil engineering systems focus on the development of what?

A

Infrastructure like roads and bridges

B

Software applications

C

Chemical processes

D

Electrical grids

13

What is the primary function of a social system like a government or school?

A

To manage social interactions and governance

B

To design computer hardware

C

To explore outer space

D

To invent new technologies

14

How does natural science approach the study of systems?

A

By studying existing natural systems to understand them

B

By creating new artificial systems

C

By prescribing solutions to problems

D

By developing new software

15

Design science is described as being:

A

Prescriptive

B

Descriptive

C

Reactive

D

Observational

16

What is the main objective of a computer as a system?

A

To process data and execute tasks

B

To generate electricity

C

To cool a room

D

To manage traffic

17

Which components of a computer are responsible for presenting results to the user?

A

Output devices like monitors and printers

B

Input devices like keyboard and mouse

C

Storage devices like SSDs

D

The CPU

18

What is the function of the motherboard in a computer system?

A

It interconnects all components

B

It performs all calculations

C

It stores data permanently

D

It manages network connections

19

The Von Neumann architecture is named after which individual?

A

John von Neumann

B

Alan Turing

C

Charles Babbage

D

Ada Lovelace

20

In the Von Neumann architecture, what does the CPU's Control Unit (CU) do?

A

It governs the activities of the CPU

B

It performs mathematical calculations

C

It stores program instructions

D

It displays output

21

Which bus in a computer system carries control signals from the CPU to other components?

A

Control Bus

B

Data Bus

C

Address Bus

D

System Bus

22

What is the first step in the Von Neumann instruction cycle?

A

Fetching

B

Decoding

C

Executing

D

Storing

23

During which stage of the Von Neumann cycle is an instruction interpreted?

A

Decoding

B

Fetching

C

Executing

D

Storing

24

The Arithmetic Logic Unit (ALU) is primarily used during which stage of the instruction cycle?

A

Execution

B

Fetching

C

Decoding

D

Storing

25

What is considered a primary advantage of the Von Neumann architecture?

A

Simplified Design

B

High Security

C

Parallel Processing

D

No bottlenecks

26

The 'Von Neumann bottleneck' refers to the limitation caused by what?

A

A single memory area for instructions and data

B

Slow processing speed of the ALU

C

The complexity of the Control Unit

D

Lack of storage space

27

What are the three basic requisites needed to run a computing system?

A

Hardware, software, and electricity

B

CPU, RAM, and a monitor

C

An operating system, an application, and a user

D

A keyboard, a mouse, and a network

28

Windows and macOS are examples of what type of software?

A

System Software

B

Application Software

C

Freeware

D

Malware

29

A word processor or a web browser is categorized as what type of software?

A

Application software

B

System software

C

Utility software

D

Firmware

30

What is the primary objective of a computer network?

A

Resource Sharing and Communication

B

Running a single application

C

Storing data indefinitely

D

Processing complex algorithms

31

Which device is used to transmit data packets between different networks?

A

Router

B

Switch

C

Hub

D

Modem

32

TCP/IP and FTP are examples of what?

A

Protocols

B

Network hardware

C

Network operating systems

D

Network cables

33

A network that connects computers within a single building or school is known as a:

A

Local Area Network (LAN)

B

Wide Area Network (WAN)

C

Metropolitan Area Network (MAN)

D

Personal Area Network (PAN)

34

The Internet is an example of which type of network?

A

Wide Area Network (WAN)

B

Local Area Network (LAN)

C

Storage Area Network (SAN)

D

Virtual Private Network (VPN)

35

What does the 'Stored Program Concept' in Von Neumann architecture mean?

A

Programs are stored in memory and can be changed

B

Programs are hardwired into the hardware

C

Only data is stored in memory

D

Programs are stored on external devices only

36

Which of these is a biological system?

A

A human body

B

A car engine

C

A computer

D

A bridge

37

What is the function of an Address Bus?

A

It maintains data destination information

B

It transports data

C

It transports control signals

D

It powers the components

38

What is a defining characteristic of a deterministic system?

A

The impact of its output is fully known and certain

B

Its environment changes unpredictably

C

It operates without human intervention

D

It processes information slowly

39

The process of creating new systems to solve problems is central to which field?

A

Design Science

B

Natural Science

C

Social Science

D

Physics

40

What is a primary role of RAM in a computer system?

A

Transient storage for data and instructions for the CPU

B

Permanent storage for all files

C

To connect the computer to a network

D

To display images on the screen

41

Which of the following is considered an interface component?

A

Keyboard

B

System Bus

C

Motherboard

D

Power Supply

42

What does DNA serve as in a biological context?

A

A blueprint for life

B

An energy source

C

A communication channel

D

A waste disposal system

43

In the context of computer science, the study of algorithm efficiency falls under:

A

The natural science of computer science

B

The design science of computer science

C

Software engineering

D

Network administration

44

What is the main function of the 'Analysis' phase in the empirical cycle of natural science?

A

To interpret the results of an experiment

B

To form a hypothesis

C

To conduct an observation

D

To reach a final conclusion

45

A home automation system that controls lighting and security is an example of what?

A

An electrical engineering system

B

A mechanical engineering system

C

A civil engineering system

D

A chemical engineering system

46

What is the core protocol that governs data transmission over the Internet?

A

TCP/IP

B

HTTP

C

FTP

D

POP

47

The act of a user typing on a keyboard is an example of what?

A

User Input

B

Network Communication

C

Power Supply interaction

D

Data Storage

48

Which part of the brain is analogous to a communication network?

A

Neurons sending signals

B

The skull protecting the brain

C

The electrical energy produced

D

The speed of information travel

49

What is a key security risk in the Von Neumann architecture?

A

Data and instructions being in the same memory area

B

The use of multiple CPUs

C

The speed of the data bus

D

The simplicity of the design

50

How many operations per second can the human brain perform?

A

10 quadrillion

B

10 billion

C

10 trillion

D

10 million