Introduction to computers MCQ Questions and Answers
byB. Debnath-
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Introduction to computers MCQ Questions and Answers (based on previous-year questions) focuses on all topics of computer basics, covering 100 questions. You should practice these MCQs for 30 minutes daily for 1-2 months. This way of systematic learning will prepare you easily for UPSC, SSC, C-TET, State PSC Bank PO, Clerk, and various competitive exams conducted by the state government and central government. Explore the introduction to computers Questions and Answers (MCQ) in the language that suits you best! All MCQ series are accessible in various Indian languages, including Assamese, Bengali, English, Gujarati, Hindi, Kannada, Malayalam, Marathi, Odia, Punjabi, Tamil, Telugu, and Urdu. Select your preferred language from the drop-down menu below and start learning.
This MCQ series is available in various Indian languages. Choose your preferred language from the drop-down menu below.
11. Explain the concept of binary code and its significance in computing.
[A] Binary code is a code used to store data permanently
[B] Binary code is a code that represents data using a series of 0s and 1s
[C] Binary code is a code used to display graphics on the screen
[D] Binary code is a code that allows computers to process instructions
Correct Answer is: [B] Binary code is a code that represents data using a series of 0s and 1s. It is significant in computing because it forms the basis of all computer operations, allowing computers to store, process, and transmit data.
12. What is the function of a network interface card (NIC) in a computer?
[A] To store data permanently
[B] To connect the CPU to other components
[C] To display graphics on the screen
[D] To connect the computer to a network
Correct Answer is: [D] To connect the computer to a network
13. Describe the difference between analog and digital computers.
[A] Analog computers use continuous data, while digital computers use discrete data
[B] Analog computers are faster than digital computers
[C] Analog computers use binary code, while digital computers use decimal code
[D] Analog computers are more accurate than digital computers
Correct Answer is: [A] Analog computers use continuous data, while digital computers use discrete data
14. How do computers store and retrieve data on a hard drive?
[A] By connecting computers in a network
[B] By controlling the flow of data between hardware components
[C] By using magnetic storage
[D] By displaying graphics on the screen
Correct Answer is: [C] By using magnetic storage
15. Explain the purpose of a computer's power supply unit (PSU).
[A] To store data permanently
[B] To connect the CPU to other components
[C] To convert AC power from an outlet into DC power for the computer
[D] To display graphics on the screen
Correct Answer is: [C] To convert AC power from an outlet into DC power for the computer
16. Define the term 'firmware' and give an example.
[A] Software that is permanently stored in ROM or flash memory
[B] Software that is temporarily stored in RAM
[C] Software that controls the flow of data between hardware components
[D] Software that connects computers in a network
Correct Answer is: [A] Software that is permanently stored in ROM or flash memory. Example: BIOS
17. How does a computer's BIOS perform the boot process?
[A] By storing data permanently
[B] By connecting the CPU to other components
[C] By executing instructions stored in ROM
[D] By displaying graphics on the screen
Correct Answer is: [C] By executing instructions stored in ROM
18. Describe the purpose of a computer's expansion slots.
[A] To store data permanently
[B] To connect the CPU to other components
[C] To allow for the addition of expansion cards to increase the computer's functionality
[D] To display graphics on the screen
Correct Answer is: [C] To allow for the addition of expansion cards to increase the computer's functionality
19. Explain the concept of a computer virus and how it spreads.
[A] A computer virus is a malicious program that can replicate itself and spread to other computers
[B] A computer virus is a program that displays unwanted advertisements
[C] A computer virus is a program that slows down the computer
[D] A computer virus is a program that displays fake security alerts
Correct Answer is: [A] A computer virus is a malicious program that can replicate itself and spread to other computers. It spreads through infected files, email attachments, or removable media.
20. Describe the role of a firewall in computer security.
[A] To store data permanently
[B] To connect the CPU to other components
[C] To protect the computer from unauthorized access over a network
[D] To display graphics on the screen
Correct Answer is: [C] To protect the computer from unauthorized access over a network