Notes:
Very imported Computer MCQs Class 9th.
Certainly! Here are 15 multiple-choice questions (MCQs) with answers for Class 9th Computer Science, Chapter 1:
1. What is the primary function of a computer? a. Playing games b. Solving mathematical problems c. Storing photos d. Cooking
Answer: b. Solving mathematical problems
2. Which of the following is an example of input device? a. Monitor b. Printer c. Keyboard d. Speaker
Answer: c. Keyboard
3. What does CPU stand for? a. Central Processing Unit b. Central Peripheral Unit c. Computer Processing Unit d. Central Print Unit
Answer: a. Central Processing Unit
4. Which component is considered the brain of the computer? a. RAM b. Hard Disk c. CPU d. Motherboard
Answer: c. CPU
5. What is the purpose of an operating system? a. Run applications b. Manage hardware resources c. Both a and b d. None of the above
Answer: c. Both a and b
6. What is the function of RAM in a computer? a. Permanent storage b. Temporary storage c. Processing data d. Running the operating system
Answer: b. Temporary storage
7. Which of the following is a secondary storage device? a. RAM b. Hard Disk c. CPU d. Cache Memory
Answer: b. Hard Disk
8. What is the full form of URL? a. Uniform Resource Locator b. Universal Resource Locator c. Unified Resource Locator d. Unique Resource Locator
Answer: a. Uniform Resource Locator
9. Which programming language is commonly used for web development? a. Java b. Python c. HTML d. C++
Answer: c. HTML
10. What is the purpose of a firewall in a computer system? a. Protect against viruses b. Control network access c. Enhance graphics performance d. Manage file storage
Answer: b. Control network access
11. Which type of software is designed to perform a specific task for the user? a. Operating System b. Application Software c. System Software d. Utility Software
Answer: b. Application Software
12. What is the function of a compiler? a. Convert high-level code to machine code b. Execute programs c. Manage hardware resources d. Protect against malware
Answer: a. Convert high-level code to machine code
13. What is the main purpose of an antivirus program? a. Create backups b. Protect against computer viruses c. Manage files and folders d. Optimize system performance
Answer: b. Protect against computer viruses
14. Which type of network covers a limited geographical area, such as a campus or a city? a. LAN (Local Area Network) b. WAN (Wide Area Network) c. MAN (Metropolitan Area Network) d. PAN (Personal Area Network)
Answer: c. MAN (Metropolitan Area Network)
15. What is the purpose of a modem in computer networking? a. Connect to the internet b. Manage files and folders c. Provide security d. Run applications
Answer: a. Connect to the internet
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