Chapter 5 Software System – 9th Class Computer Science | Solved Exercise

Multiple Choice Questions (MCQs) with Answers, Explanations, and Tips


1. What is the primary function of an operating system?

Statement: The operating system is the core software that manages the computer’s hardware and provides an interface for users.
Options:
a) To create documents
b) To manage hardware resources and provide a user interface
c) To perform calculations
d) To design graphics
Answer: b) To manage hardware resources and provide a user interface
Explanation: The Operating System (OS) controls hardware resources, provides a user interface, and manages applications. Examples include Windows, macOS, and Linux.
Tip: Remember, an OS acts as a bridge between the hardware and the user.


2. Which software is used to enhance system performance and security?

Statement: Some specialized software helps in optimizing system performance and protecting it from threats.
Options:
a) Operating system
b) Utility software
c) Application software
d) Device drivers
Answer: b) Utility software
Explanation: Utility software includes tools like antivirus programs, disk cleanup, and system optimization tools, which help in maintaining the system’s efficiency and security.
Tip: Think of utility software as a maintenance tool for your computer.


3. What role do device drivers play in a computer system?

Statement: Device drivers are essential software components that ensure communication between the OS and hardware.
Options:
a) Manage files
b) Facilitate communication between hardware devices and the operating system
c) Create presentations
d) Enhance graphics performance
Answer: b) Facilitate communication between hardware devices and the operating system
Explanation: A device driver enables the OS to recognize and communicate with hardware components like printers, keyboards, and graphics cards. Without drivers, hardware may not function correctly.
Tip: Think of a driver as a translator between hardware and software.


4. Which of the following is an example of application software?

Statement: Application software helps users perform specific tasks.
Options:
a) Microsoft Word
b) BIOS
c) Disk Cleanup
d) Device Manager
Answer: a) Microsoft Word
Explanation: Application software is designed for end-users, such as word processors, web browsers, and media players. Microsoft Word is a word-processing application used to create and edit documents.
Tip: If it helps users perform a task, it’s application software.


5. What is the main purpose of spreadsheet software?

Statement: Spreadsheet software helps users manage and analyze numerical data efficiently.
Options:
a) To edit text documents
b) To organize and analyze data
c) To create visual content
d) To enhance system security
Answer: b) To organize and analyze data
Explanation: Spreadsheet software, like Microsoft Excel and Google Sheets, is used for data management, calculations, and financial analysis.
Tip: Spreadsheets = Numbers + Calculations.


6. How does utility software differ from application software?

Statement: Utility software serves a different purpose than application software in computing.
Options:
a) Utility software manages hardware, while application software performs specific tasks for users.
b) Utility software creates documents, while application software manages hardware.
c) Utility software performs specific tasks for users, while application software manages hardware.
d) Utility software is free, while application software is paid.
Answer: a) Utility software manages hardware, while application software performs specific tasks for users.
Explanation: Utility software focuses on system maintenance, such as antivirus, file management, and disk cleanup, while application software includes tools for document editing, browsing, and media playback.
Tip: Utility = Maintenance, Application = User Tasks.


7. Which type of software would you use to design a logo?

Statement: Graphic design software is commonly used for creating digital artwork, including logos.
Options:
a) Operating system
b) Spreadsheet software
c) Graphic design software
d) Utility software
Answer: c) Graphic design software
Explanation: Graphic design software, like Adobe Photoshop, Illustrator, and CorelDRAW, is specifically designed for creating images, logos, and digital art.
Tip: If it involves image editing or design, it’s graphic design software.


8. What is the function of system software?

Statement: System software plays a crucial role in managing computer hardware and software interactions.
Options:
a) To facilitate communication between hardware and software
b) To perform specific tasks for the user
c) To create visual content
d) To organize and analyze data
Answer: a) To facilitate communication between hardware and software
Explanation: System software includes the operating system, drivers, and utility programs, ensuring the smooth functioning of hardware and applications.
Tip: System software = Foundation of a computer system.


9. Why are operating system updates important?

Statement: Regular OS updates ensure system security, performance improvements, and bug fixes.
Options:
a) They increase screen brightness
b) They add more fonts
c) They enhance security and fix bugs
d) They improve battery life
Answer: c) They enhance security and fix bugs
Explanation: OS updates patch security vulnerabilities, improve software compatibility, and fix system bugs. Ignoring updates can lead to security risks.
Tip: Always update your OS for better security and performance!


Summary of Tips & Tricks

  1. Operating System = Manages hardware & software interactions.
  2. Utility Software = System maintenance tools like antivirus & cleanup.
  3. Device Drivers = Bridge between hardware and the OS.
  4. Application Software = Programs for user tasks (e.g., Word, Excel).
  5. Spreadsheet Software = Deals with numbers & data analysis.
  6. Graphic Design Software = Used for logos, editing, and illustrations.
  7. System Software = Backbone of the computer system.
  8. OS Updates = Improve security & fix issues.

Solved Short Questions

1. Define system software and provide two examples.

Answer: System software is a type of software that manages and controls computer hardware and provides a platform for running application software.
Examples:

  1. Operating System (OS) – Windows, Linux
  2. Utility Software – Antivirus, Disk Cleanup

Key Words: System software, Operating System, Utility Software, Hardware Management


2. Explain the primary functions of an operating system.

Answer: The operating system performs the following key functions:

  1. Hardware Management – Controls CPU, memory, and devices.
  2. User Interface – Provides a way for users to interact (GUI/CLI).
  3. File Management – Organizes, saves, and retrieves files.
  4. Security Management – Protects data through authentication.

Key Words: Hardware, User Interface, File Management, Security


3. What is utility software and why is it important?

Answer: Utility software helps maintain, optimize, and secure a computer system. It is important because it enhances system performance and ensures security.
Examples:

  • Antivirus Software – Protects from viruses.
  • Disk Cleanup – Removes unnecessary files to free space.

Key Words: Maintenance, Optimization, Security, Antivirus, Disk Cleanup


4. Describe the role of device drivers in a computer system.

Answer: A device driver is software that allows the operating system to communicate with hardware devices such as printers, keyboards, and graphics cards.

  • Without drivers, hardware cannot function properly.

Key Words: Communication, Hardware, Operating System, Printer, Keyboard


5. Differentiate between system software and application software with examples.

Answer:

FeatureSystem SoftwareApplication Software
PurposeManages hardware & system functionsHelps users perform specific tasks
ExamplesOperating System, Device DriversMS Word, Adobe Photoshop
User InteractionWorks in the backgroundDirectly used by users

Key Words: System Control, User Task, OS, Application


6. What are the main functions of spreadsheet software?

Answer:

  1. Data Organization – Stores and arranges data in rows/columns.
  2. Mathematical Calculations – Performs functions like addition and averages.
  3. Data Analysis – Creates charts and graphs.
  4. Financial Planning – Used for budgeting and accounting.

Key Words: Excel, Data Analysis, Formulas, Charts


7. How can graphic design software be used in the field of education?

Answer:

  • Helps students create visual presentations.
  • Used for designing educational posters and infographics.
  • Assists in digital art and creative projects.

Examples: Adobe Photoshop, Canva

Key Words: Education, Visual Learning, Creativity, Infographics


8. What is the significance of data backups and how can they be performed?

Answer:
Significance: Protects against data loss due to system crashes, malware, or accidental deletion.
Methods:

  1. Cloud Backup – Google Drive, OneDrive.
  2. External Storage – USB, Hard Disk.
  3. Automated Backup Software – Backup utilities in OS.

Key Words: Data Protection, Cloud Storage, USB, Security


Solved Long Questions

1. Discuss the importance of system software in a computing system.

Answer:
System software is essential because it enables the hardware and software to function together efficiently. Without system software, a computer cannot operate properly.

Importance of System Software:

  1. Hardware Management: Controls CPU, memory, and peripheral devices.
  2. User Interface: Provides GUI (Graphical User Interface) or CLI (Command Line Interface) for user interaction.
  3. File Management: Organizes, retrieves, and manages storage.
  4. Security & Protection: Manages user authentication and system security.
  5. Performance Optimization: Utility software enhances system performance.

Examples:

  • Windows, macOS (Operating Systems)
  • Antivirus, Disk Cleanup (Utility Software)

Key Words: Hardware, Security, Performance, GUI, Operating System


2. Describe the roles of operating systems, utility software, and device drivers, providing examples of each.

Answer:

Software TypeFunctionExamples
Operating SystemManages hardware & software, provides UIWindows, Linux
Utility SoftwareOptimizes system performance & securityAntivirus, Disk Cleanup
Device DriversEnables communication between OS & hardwarePrinter Driver, GPU Driver

1. Operating System:

  • Controls hardware resources.
  • Provides security features like password protection.

2. Utility Software:

  • Maintains system efficiency.
  • Examples: Disk Defragmenter (organizes files), Firewall (prevents cyber threats).

3. Device Drivers:

  • Acts as a bridge between hardware and the operating system.
  • Example: A printer driver allows the OS to send print commands.

Key Words: System Software, Utility, Driver, OS, Hardware


3. Explain the differences between system software and application software.

Answer:
System software is responsible for managing system operations, whereas application software is designed for user tasks.

Differences:

FeatureSystem SoftwareApplication Software
FunctionControls system operationsPerforms specific tasks
User InteractionWorks in the backgroundDirectly used by users
ExamplesOS, Drivers, Utility SoftwareMS Word, Photoshop

Key Words: System Operations, User Task, OS, Applications


4. Describe the process of using utility software to optimize system performance and maintain security.

Answer:
Utility software improves system performance and protects it from threats.

Steps to Optimize Performance:

  1. Run Disk Cleanup – Deletes junk files.
  2. Use Disk Defragmentation – Arranges fragmented files for faster access.
  3. Check for Malware – Use antivirus software for security.
  4. Manage Startup Programs – Reduces system boot time.

Common Utility Software:

  • Antivirus Software – Prevents viruses.
  • Firewall – Protects from cyber threats.

Key Words: Optimization, Security, Antivirus, Firewall, Disk Cleanup


5. Explain how to install, update, and troubleshoot device drivers for hardware components.

Answer:

Steps to Install/Update Drivers:

  1. Manual Installation:
    • Download driver from manufacturer’s website.
    • Install using setup file.
  2. Automatic Update:
    • Use Windows Device Manager to update drivers.
  3. Troubleshooting:
    • If hardware does not work, reinstall the driver.
    • Check for error messages and update accordingly.

Key Words: Drivers, Installation, Update, Troubleshoot, Device Manager


6. Discuss the main functions of commonly used application software.

Answer:

Types of Application Software:

TypePurposeExamples
Word ProcessingCreate/edit documentsMS Word, Google Docs
SpreadsheetOrganize & analyze dataMS Excel, Google Sheets
PresentationCreate slideshowsMS PowerPoint, Canva
Graphic DesignCreate visualsPhotoshop, Illustrator
  • Word Processors are used for writing documents.
  • Spreadsheets handle data calculations.
  • Presentation software is used for making slideshows.
  • Graphic design software creates digital artwork.

Key Words: Word Processing, Spreadsheet, Presentation, Graphic Design


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