Hard Disk, CD, DVD MCQs Class 6
Hard Disk, CD, DVD – Class 6 MCQs
Course: CBSE Class 6 Computer Science
Section: Memory and Storage Devices
Topic: Hard Disk, CD, DVD
Based on: NCERT Syllabus | CBSE Board Examination Pattern
Section: Memory and Storage Devices
Topic: Hard Disk, CD, DVD
Based on: NCERT Syllabus | CBSE Board Examination Pattern
1. Hard Disk is a type of:
Answer: B. Secondary storage
Explanation: Hard disks store data permanently and are used for long‑term storage.
Explanation: Hard disks store data permanently and are used for long‑term storage.
2. Hard disk stores data using:
Answer: B
Explanation: Data is stored magnetically on rotating platters.
Explanation: Data is stored magnetically on rotating platters.
3. CD stands for:
Answer: A
Explanation: CDs are optical storage media.
Explanation: CDs are optical storage media.
4. DVD stands for:
Answer: B
Explanation: DVDs can store more data than CDs.
Explanation: DVDs can store more data than CDs.
5. Which storage has the highest capacity?
Answer: C
Explanation: Hard disks store very large amounts of data.
Explanation: Hard disks store very large amounts of data.
6. CD/DVD are:
Answer: B
Explanation: They use laser light to read/write data.
Explanation: They use laser light to read/write data.
7. Which device is fixed inside CPU cabinet?
Answer: C
Explanation: Internal hard disks are installed inside the computer.
Explanation: Internal hard disks are installed inside the computer.
8. Which is removable media?
Answer: B
Explanation: CDs can be inserted and removed easily.
Explanation: CDs can be inserted and removed easily.
9. DVDs are commonly used for storing:
Answer: D
Explanation: DVDs store large multimedia data.
Explanation: DVDs store large multimedia data.
10. Hard disk speed is measured in:
Answer: A
Explanation: RPM = Revolutions Per Minute.
Explanation: RPM = Revolutions Per Minute.
11. Which uses laser beam?
Answer: B
Explanation: Optical disks use laser technology.
Explanation: Optical disks use laser technology.
12. Data in hard disk is:
Answer: B
Explanation: It stores data permanently.
Explanation: It stores data permanently.
13. Storage capacity of CD is about:
Answer: A
Explanation: Standard CD stores ~700 MB.
Explanation: Standard CD stores ~700 MB.
14. DVD capacity is greater than:
Answer: A
Explanation: DVDs store more data than CDs.
Explanation: DVDs store more data than CDs.
15. Hard disk is also called:
Answer: A
Explanation: It is permanently fixed inside system.
Explanation: It is permanently fixed inside system.
16. Example of optical storage:
Answer: D
Explanation: All are optical disks.
Explanation: All are optical disks.
17. Hard disk stores:
Answer: D
Explanation: It stores all computer data.
Explanation: It stores all computer data.
18. Optical disks are sensitive to:
Answer: D
Explanation: Physical damage affects reading.
Explanation: Physical damage affects reading.
19. Which is faster?
Answer: A
Explanation: Magnetic disks are faster.
Explanation: Magnetic disks are faster.
20. These devices are used for:
Answer: D
Explanation: They store and secure data long‑term.
Explanation: They store and secure data long‑term.
