Question 1

Question 3Which function of an operating system ensures that each process receives enough time (by the processor) to function properly?File ManagementJob ControlProcessor ManagementAll of these

Accepted Answer

Processor ManagementReason — Processor Management is the function of an operating system which ensures that each process receives enough time (by the processor) to function properly.

Question 2

Question 13............... is loaded first and remains in the memory until the operating system is shut down.ShellkernelApplicationNone of these

Accepted Answer

kernelReason — Kernel is loaded first and remains in the memory until the operating system is shut down.

Source: This question is from Operating System, Computer Applications &mdash; Class 9, CBSE Board.
Key Concepts CoveredThis question tests your understanding of the following concepts from the chapter Operating System: Question, Loaded, First, Remains, Memory, Until. These are fundamental topics in Computer Applications that students are expected to master as part of the CBSE Class 9 curriculum.A thorough understanding of these concepts will help you answer similar questions confidently in your CBSE examinations. These topics are frequently tested in both objective and subjective sections of Computer Applications papers. We recommend revising the relevant section of your textbook alongside practising these solved examples to build a strong foundation.
How to Approach MCQsMultiple choice questions test your ability to quickly recall facts and apply concepts. Read all options carefully before selecting your answer. Use the process of elimination to rule out clearly incorrect options first. If two options seem similar, look for the subtle difference that makes one more accurate. For numerical MCQs, verify your answer by substituting it back into the problem.
Key Points to RememberWrite programs with proper indentation and comments.
Trace through your code with sample inputs to verify correctness.
Explain the logic behind each step of your solution.
Familiarise yourself with common library functions and methods.
Related Questions from Operating SystemQ1: Question 1 What is an operating system? Name the types of OS.
Q10: Question 10 What is the difference between single user operating system and multi user operating...
Q11: Question 11 How is multithreaded operating system different than multitasking operating system?
Q14: Question 14 Distributed operating system runs on a single computer.
Q15: Question 15 ................... Operating Systems allow more than one user to use the same computer...
Practice more questions from Operating System &mdash; Computer Applications, Class 9 CBSE

Question 3

Question 15................... Operating Systems allow more than one user to use the same computer at the same time or different times.Multi userMulti threadingSingle userNone of these

Accepted Answer

Multi userReason — Multi user Operating Systems allow more than one user to use the same computer at the same time or different times.

Source: This question is from Operating System, Computer Applications &mdash; Class 9, CBSE Board.
Key Concepts CoveredThis question tests your understanding of the following concepts from the chapter Operating System: Question, Operating, Systems, Allow, User, Use. These are fundamental topics in Computer Applications that students are expected to master as part of the CBSE Class 9 curriculum.A thorough understanding of these concepts will help you answer similar questions confidently in your CBSE examinations. These topics are frequently tested in both objective and subjective sections of Computer Applications papers. We recommend revising the relevant section of your textbook alongside practising these solved examples to build a strong foundation.
How to Approach MCQsMultiple choice questions test your ability to quickly recall facts and apply concepts. Read all options carefully before selecting your answer. Use the process of elimination to rule out clearly incorrect options first. If two options seem similar, look for the subtle difference that makes one more accurate. For numerical MCQs, verify your answer by substituting it back into the problem.
Key Points to RememberWrite programs with proper indentation and comments.
Trace through your code with sample inputs to verify correctness.
Explain the logic behind each step of your solution.
Familiarise yourself with common library functions and methods.
Related Questions from Operating SystemQ1: Question 1 What is an operating system? Name the types of OS.
Q10: Question 10 What is the difference between single user operating system and multi user operating...
Q11: Question 11 How is multithreaded operating system different than multitasking operating system?
Q13: Question 13 ............... is loaded first and remains in the memory until the operating system is...
Q14: Question 14 Distributed operating system runs on a single computer.
Practice more questions from Operating System &mdash; Computer Applications, Class 9 CBSE

Question 4

Question 16................... operating systems have the capability to prioritize the processes, minimize execution time, and work independently with no interdependencies.Real timeMulti userDistributedSingle user

Accepted Answer

Real timeReason — Real time operating systems have the capability to prioritize the processes, minimize execution time, and work independently with no interdependencies.

Question 5

Question 17................... is a high performance, yet completely free, Unix-like operating system, which is suitable for use on a wide range of computers and other products.WindowsUnixLinuxNone of these

Accepted Answer

LinuxReason — Linux is a high performance, yet completely free, Unix-like operating system, which is suitable for use on a wide range of computers and other products.

Source: This question is from Operating System, Computer Applications &mdash; Class 9, CBSE Board.
Key Concepts CoveredThis question tests your understanding of the following concepts from the chapter Operating System: Question, High, Performance, Completely, Free, Unix. These are fundamental topics in Computer Applications that students are expected to master as part of the CBSE Class 9 curriculum.A thorough understanding of these concepts will help you answer similar questions confidently in your CBSE examinations. These topics are frequently tested in both objective and subjective sections of Computer Applications papers. We recommend revising the relevant section of your textbook alongside practising these solved examples to build a strong foundation.
How to Approach MCQsMultiple choice questions test your ability to quickly recall facts and apply concepts. Read all options carefully before selecting your answer. Use the process of elimination to rule out clearly incorrect options first. If two options seem similar, look for the subtle difference that makes one more accurate. For numerical MCQs, verify your answer by substituting it back into the problem.
Key Points to RememberWrite programs with proper indentation and comments.
Trace through your code with sample inputs to verify correctness.
Explain the logic behind each step of your solution.
Familiarise yourself with common library functions and methods.
Related Questions from Operating SystemQ1: Question 1 What is an operating system? Name the types of OS.
Q10: Question 10 What is the difference between single user operating system and multi user operating...
Q11: Question 11 How is multithreaded operating system different than multitasking operating system?
Q13: Question 13 ............... is loaded first and remains in the memory until the operating system is...
Q14: Question 14 Distributed operating system runs on a single computer.
Practice more questions from Operating System &mdash; Computer Applications, Class 9 CBSE

Question 6

Question 18What do you call the structure that defines the ways in which files are named and where they are placed logically for storage and retrieval.Operating SystemComputer SystemFile SystemNone of these

Accepted Answer

File SystemReason — File System defines the ways in which files are named and where they are placed logically for storage and retrieval.

Source: This question is from Operating System, Computer Applications &mdash; Class 9, CBSE Board.
Key Concepts CoveredThis question tests your understanding of the following concepts from the chapter Operating System: Question, Call, Structure, Defines, Ways, Files. These are fundamental topics in Computer Applications that students are expected to master as part of the CBSE Class 9 curriculum.A thorough understanding of these concepts will help you answer similar questions confidently in your CBSE examinations. These topics are frequently tested in both objective and subjective sections of Computer Applications papers. We recommend revising the relevant section of your textbook alongside practising these solved examples to build a strong foundation.
How to Approach MCQsMultiple choice questions test your ability to quickly recall facts and apply concepts. Read all options carefully before selecting your answer. Use the process of elimination to rule out clearly incorrect options first. If two options seem similar, look for the subtle difference that makes one more accurate. For numerical MCQs, verify your answer by substituting it back into the problem.
Key Points to RememberWrite programs with proper indentation and comments.
Trace through your code with sample inputs to verify correctness.
Explain the logic behind each step of your solution.
Familiarise yourself with common library functions and methods.
Related Questions from Operating SystemQ1: Question 1 What is an operating system? Name the types of OS.
Q10: Question 10 What is the difference between single user operating system and multi user operating...
Q11: Question 11 How is multithreaded operating system different than multitasking operating system?
Q13: Question 13 ............... is loaded first and remains in the memory until the operating system is...
Q14: Question 14 Distributed operating system runs on a single computer.
Practice more questions from Operating System &mdash; Computer Applications, Class 9 CBSE

Question 7

Question 12Multi-user operating systems allow more than one user to use the same computer at the same time or different times.

Accepted Answer

TrueReason — Multi-user operating systems allow more than one user to use the same computer at the same time or different times.

Source: This question is from Operating System, Computer Applications &mdash; Class 9, CBSE Board.
Key Concepts CoveredThis question tests your understanding of the following concepts from the chapter Operating System: Question, Multi, User, Operating, Systems, Allow. These are fundamental topics in Computer Applications that students are expected to master as part of the CBSE Class 9 curriculum.A thorough understanding of these concepts will help you answer similar questions confidently in your CBSE examinations. These topics are frequently tested in both objective and subjective sections of Computer Applications papers. We recommend revising the relevant section of your textbook alongside practising these solved examples to build a strong foundation.
How to Approach This QuestionRead the question carefully and identify what is being asked. Break down complex questions into smaller parts. Use the terminology and concepts discussed in this chapter. Structure your answer logically — begin with a definition or key statement, then provide supporting details. Review your answer to ensure it addresses all parts of the question completely.
Key Points to RememberWrite programs with proper indentation and comments.
Trace through your code with sample inputs to verify correctness.
Explain the logic behind each step of your solution.
Familiarise yourself with common library functions and methods.
Related Questions from Operating SystemQ1: Question 1 What is an operating system? Name the types of OS.
Q10: Question 10 What is the difference between single user operating system and multi user operating...
Q11: Question 11 How is multithreaded operating system different than multitasking operating system?
Q13: Question 13 ............... is loaded first and remains in the memory until the operating system is...
Q14: Question 14 Distributed operating system runs on a single computer.
Practice more questions from Operating System &mdash; Computer Applications, Class 9 CBSE

Question 8

Question 14Distributed operating system runs on a single computer.

Accepted Answer

FalseReason — Distributed Operating System runs on computers, which are located in different geographical areas, interconnected through a network.

Source: This question is from Operating System, Computer Applications &mdash; Class 9, CBSE Board.
Key Concepts CoveredThis question tests your understanding of the following concepts from the chapter Operating System: Question, Distributed, Operating, System, Runs, Single. These are fundamental topics in Computer Applications that students are expected to master as part of the CBSE Class 9 curriculum.A thorough understanding of these concepts will help you answer similar questions confidently in your CBSE examinations. These topics are frequently tested in both objective and subjective sections of Computer Applications papers. We recommend revising the relevant section of your textbook alongside practising these solved examples to build a strong foundation.
How to Approach This QuestionRead the question carefully and identify what is being asked. Break down complex questions into smaller parts. Use the terminology and concepts discussed in this chapter. Structure your answer logically — begin with a definition or key statement, then provide supporting details. Review your answer to ensure it addresses all parts of the question completely.
Key Points to RememberWrite programs with proper indentation and comments.
Trace through your code with sample inputs to verify correctness.
Explain the logic behind each step of your solution.
Familiarise yourself with common library functions and methods.
Related Questions from Operating SystemQ1: Question 1 What is an operating system? Name the types of OS.
Q10: Question 10 What is the difference between single user operating system and multi user operating...
Q11: Question 11 How is multithreaded operating system different than multitasking operating system?
Q13: Question 13 ............... is loaded first and remains in the memory until the operating system is...
Q15: Question 15 ................... Operating Systems allow more than one user to use the same computer...
Practice more questions from Operating System &mdash; Computer Applications, Class 9 CBSE

Question 9

Question 1What is an operating system? Name the types of OS.

Accepted Answer

An operating system is an integrated set of programs that manages various resources and the overall operations of a computer system. It is designed to support the various activities of the computer system in a systematic way. For example, Microsoft Windows, Linux, etc.The different types of Operating System are:Single User Operating SystemGraphical User InterfaceMulti-user Operating SystemMultitasking Operating SystemMultithreading Operating SystemReal time Operating SystemDistributed Operating System

Question 10

Question 2Describe mobile operating system. Give some example of mobile OS.

Accepted Answer

Mobile Operating is particularly designed to operate smartphones, PDAs, tablets and other mobile devices. Mobile Operating System is a software, which provides platform on which other programs or applications can run on mobile devices. It has empowered the users to check their mails, files, and to work on the data from anywhere and anytime.Some examples of Mobile Operating System are BlackBerry (RIM), Android (Google), iOS (Apple), Symbian (Nokia), and Windows Mobile (Microsoft).

Question 11

Question 4What is the difference between multiprocessing and multi-threading operating system.

Accepted Answer

Multiprocessing OSMulti-threading OSA multiprocessing OS uses multiple processors to perform tasks within a single system. The processors are connected to divide and execute jobs more quickly. When a job is finished, the results from all processors are compiled to provide the final output.Multithreading OS works by dividing a process into independent units called threads. These threads can then work on the same process simultaneously.Multiple processes are executed in a parallel fashion.Multiple threads are executed in a parallel fashion.Multiprocessing requires a significant amount of time and large number of resources.Multithreading requires less time and few resources to create.For example, Unix.For example, Solaris.

Question 12

Question 5Write short notes on:a. Android operating systemb. iOS operating system

Accepted Answer

a. Android operating system — Android is the world's most popular Mobile Operating System. It is an open source (Linux based) platform initially developed by Android Inc. in October 2003, and later on purchased by Google Inc. in 2005.The green robot is the logo for the Android operating system. Android OS turns our phone into a powerful web browser, game console, and personal assistant all in one. It was primarily designed for touchscreen portable devices such as smartphones and tablet computer. Android powers some of the best handset and tablet manufacturers in the world like Samsung, HTC, Motorola, Sony, Asus, and many more.b. iOS operating system — iOS is a mobile operating system developed by Apple. It is the world's most advanced mobile operating system. It was originally released in 2007 and is used to run the iPhone, iPad, and iPod Touch.iOS offers multitasking features that allow the applications on iphone to perform tasks in the background which in turn preserves battery life, and moreover, increases performance.iOS devices are created exclusively for its hardware. Apple designs the iOS devices to maintain a high level of security without compromising the user's experience.

Question 13

Question 6How does an operating system provide security?

Accepted Answer

The operating system provides various techniques which assures the integrity and confidentiality of user's data. Following are the security measures which are used to protect the user's data from threats and intrusion:Protection against unauthorized access through login and password.Protection against intrusion by keeping the firewall active.Protecting against malicious access to system memory.Displaying messages related to system vulnerabilities.

Question 14

Question 7What are the different responsibilities of a kernel?

Accepted Answer

Kernel is the core component of an operating system which acts as an interface between applications and the data processing being performed at the hardware level. The kernel is responsible for performing the following tasks:I/O managementMemory managementProcess management for application executionDevice management (through the use of device drivers)System calls control

Question 15

Question 8What is the difference between kernel and shell?

Accepted Answer

ShellKernelAn interface to the operating system is called a shell. It is the outermost layer of the operating system and manages the interaction between the user and the operating system.Kernel is the core component of an operating system which acts as an interface between applications and the data processing being performed at the hardware level.The shell forms the outer layer of the operating system.The kernel forms the inner layer of the operating system.A shell performs memory management.A kernel performs process management.

Question 16

Question 9Write a note on Android operating system.

Accepted Answer

Android is the world's most popular Mobile Operating System. It is an open source (Linux based) platform initially developed by Android Inc. in October 2003, and later on purchased by Google Inc. in 2005.The green robot is the logo for the Android operating system. Android OS turns your phone into a powerful web browser, game console, and personal assistant all in one. It was primarily designed for touchscreen portable devices such as smartphones and tablet computer.Android powers some of the best handset and tablet manufacturers in the world like Samsung, HTC, Motorola, Sony, Asus, and many more.

Question 17

Question 10What is the difference between single user operating system and multi user operating system ?

Accepted Answer

Single user operating systemMulti user operating systemSingle User Operating System provides a platform for one user at a time.Multiuser Operating System provides platform for multiple users at a time.Single User Operating System may be a single user, single task or a single user, multitasking operating system.Multiuser Operating System may be time sharing or multiprocessor system.Single User Operating System is suitable for personal computers.Multiuser Operating System is suitable for servers and mainframes.For example, MS DOS.For example, LINUX.

Question 18

Question 11How is multithreaded operating system different than multitasking operating system?

Accepted Answer

Multitasking OSMultithreading OSIn multitasking OS, the users are allowed to perform multiple tasks by CPU.In multithreading OS, multiple threads are created from a process.Multitasking involves CPU switching between tasks.Multithreading involves CPU switching between the threads.In multitasking, the processes share separate memory locations.In multithreading, the processes are allocated the same memory.The CPU is provided to execute many tasks at a time.The CPU is provided so that multiple threads can be executed at a specific time.Every process is assigned its own resources.Every process shares the same set of resources with each otherMultitasking is slow in comparison to multithreading.Multithreading is faster.For example, Windows XP, Windows 7, Windows 8, Windows 8.1, Windows 10.For example, Windows XP, Unix, Linux.

Operating System

Multiple Choice Questions

State True or False

Theory Questions