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Are you looking for Class 9 Computer Important Long Questions for the exams? You’ve come to the right place.

We have compiled a complete list of high-weightage long questions for 9th-grade Computer, based on the latest syllabus of the Punjab boards. This guide will help you focus your revision and score maximum marks.

Class 9 Computer Long Questions Chapterwise

Download the important long questions in PDF below

💻 Chapter 1: Introduction to Systems

1. What is a system? Explain the characteristics of a system with examples.
2. Differentiate between open and closed systems with suitable examples.
3. What is a computer system? Explain its main components.
4. Describe the Von Neumann architecture and explain its key components.
5. What is the difference between hardware and software? Explain with examples.
6. Explain the concept of a system in computer science. How is a computer considered a system?
7. What are the advantages of using a computer system?
8. Write a note on the evolution of computer systems.

📌 Smart Syllabus Note: According to the official Smart Syllabus for 2026, Long Questions Q. 2-5, and 8 from this chapter’s exercise have been deleted. Focus on the remaining questions.

🔢 Chapter 2: Number System

9. What is a number system? Explain the decimal and binary number systems.
10. How do you convert a binary number into a decimal number? Explain with an example.
11. How do you convert a decimal number into a binary number? Explain with an example.
12. What is the octal number system? How is it related to the binary system?
13. Explain the hexadecimal number system and its significance in computing.
14. Perform the following conversions:
    • (1101)₂ to decimal
    • (25)₁₀ to binary
    • (A3)₁₆ to decimal
15. What is the difference between the binary and decimal number systems?
16. Why do computers use the binary number system?

📌 Smart Syllabus Note: Topics like Binary Encoding of Integers and Real Numbers, Floating Point Representation, and Storing Images/Audio/Video have been deleted. Focus on basic conversions.

🔌 Chapter 3: Digital Systems and Logic Design

17. What is a logic gate? Explain the AND, OR, and NOT gates with truth tables.
18. Explain the NAND and NOR gates with truth tables.
19. Differentiate between combinational and sequential logic circuits.
20. Draw the logic circuit diagram for a half-adder and explain its working.
21. What are the applications of digital logic in real life?
22. Explain the concept of Boolean algebra and its importance in digital logic design.
23. How do logic gates form the building blocks of digital systems?

📌 Smart Syllabus Note: Long Questions Q. 3-6, 8, 9 from this chapter have been deleted. Focus on the basics of logic gates and their truth tables.

🔧 Chapter 4: System Troubleshooting

24. What is system troubleshooting? Explain the steps involved in troubleshooting a computer problem.
25. What are the common hardware problems in a computer system and how can they be resolved?
26. What are the common software problems in a computer system and how can they be resolved?
27. Explain the importance of troubleshooting strategies in maintaining computer systems.
28. What are the security threats to a computer system and how can they be addressed?
29. How do you diagnose a computer that is not turning on?
30. What is the role of backup and recovery in system troubleshooting?

📌 Smart Syllabus Note: Long Questions Q. 5, 6, 8, 9 from this chapter have been deleted. Focus on the basic troubleshooting steps.

📂 Chapter 5: Software System

31. What is software? Explain the difference between system software and application software.
32. What is an operating system? Explain its key functions.
33. Describe the different types of operating systems with examples.
34. What is utility software? Give examples of utility programs.
35. Explain the concept of open-source and proprietary software with examples.
36. How does an operating system manage memory and files?
37. What is the role of device drivers in a computer system?

📌 Smart Syllabus Note: According to the Smart Syllabus, Long Questions Q. 2-6 from this chapter have been deleted. Focus on the core concepts of system vs. application software.

🌐 Chapter 6: Introduction to Computer Networks

38. What is a computer network? Explain its advantages and disadvantages.
39. Describe the different types of computer networks (LAN, MAN, WAN).
40. What are network topologies? Explain the bus, star, and ring topologies with diagrams.
41. Explain the client-server model in computer networks.
42. What is network security? Explain common threats to network security.
43. What are the basic components required to set up a computer network?
44. Explain the concept of resource sharing in a network.

📌 Smart Syllabus Note: Long Questions Q. 3, 5, 8 from this chapter have been deleted. Focus on the basic definitions and types.

🧠 Chapter 7: Computational Thinking

45. What is computational thinking? Explain its four pillars (Decomposition, Pattern Recognition, Abstraction, Algorithm Design).
46. What is an algorithm? Write an algorithm to find the sum of two numbers.
47. What is a flowchart? Explain the different symbols used in flowcharts.
48. Draw a flowchart to find the largest number among three numbers.
49. Differentiate between an algorithm and a flowchart.
50. How does computational thinking help in solving real-world problems?
51. Explain the concept of pseudocode with an example.

🌐 Chapter 8: Web Development with HTML, CSS and JavaScript

52. What is HTML? Explain the basic structure of an HTML document.
53. What are HTML tags? Explain the difference between container and empty tags with examples.
54. How do you create a table in HTML? Write the code for a simple table.
55. What is CSS? Explain the different ways to apply CSS to an HTML document.
56. What is JavaScript? How is it used to make web pages interactive?
57. Explain the concept of a hyperlink in HTML. How do you create a link to another page?
58. Write HTML code to create a simple web page with a heading, paragraph, and image.

📌 Smart Syllabus Note: Long Questions Q. 7, 8 from this chapter have been deleted. Focus on the basics of HTML structure and tags.

📊 Chapter 9: Data Science and Data Gathering

59. What is data science? Explain its importance in the modern world.
60. What are the different methods of data gathering?
61. Explain the difference between primary and secondary data with examples.
62. How is data analyzed and interpreted in data science?
63. What are the ethical considerations in data gathering and usage?

🚀 Chapter 10: Emerging Technologies in Computer Science

64. What are emerging technologies? Explain Artificial Intelligence (AI) and its applications.
65. What is the Internet of Things (IoT)? Explain with examples.
66. Explain the concept of Cloud Computing and its advantages.
67. What is Blockchain technology? How does it work?
68. Describe the impact of emerging technologies on society.

⚖️ Chapter 11: Ethical, Social, and Legal Concerns in Computer Usage

69. What is cybercrime? Explain different types of cybercrimes.
70. What is data privacy? Why is it important in the digital age?
71. Explain the concept of intellectual property and copyright in computing.
72. What are the ethical responsibilities of computer users?
73. How can we prevent cyberbullying and online harassment?

💡 Chapter 12: Entrepreneurship in Digital Age

74. What is entrepreneurship? Explain the role of technology in modern entrepreneurship.
75. What are the characteristics of a successful digital entrepreneur?
76. How can a computer science student become a successful entrepreneur?
77. Explain the concept of e-commerce and its types.
78. What are the challenges faced by digital entrepreneurs?

📥 Download PDF of Computer Important Long Questions

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❓ Frequently Asked Questions (FAQs)

🎯 Expert Tips to Score High in Computer Science

1. Draw Diagrams: For questions on network topologies, logic gates, and flowcharts, always draw neat, well-labeled diagrams.
2. Learn Key Definitions: Terms like System, Algorithm, Flowchart, Operating System, Network Topology, and HTML must be memorized verbatim.
3. Practice Code Snippets: For HTML and CSS questions, practice writing small code snippets. Even a simple table or form can be a great answer.
4. Understand the Difference: Focus on comparative questions like System vs. Application Software, LAN vs. WAN, and Algorithm vs. Flowchart.
5. Follow the Smart Syllabus (if applied): Pay close attention to the topics that have been deleted. Studying unnecessary topics is a waste of time.
6. Solve Past Papers: Cross-check these questions with past board papers to understand the exam pattern and marking scheme.

Important Long Questions of Class 9

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