Which component of a hard disk drive is responsible for reading and writing data? MCQ with Answer and Explanation

Which component of a hard disk drive is responsible for reading and writing data?
A. Platter
B. Actuator arm
C. Read/Write head
D. Spindle
Answer: Option C
Solution (By JKSSB Mock Tests)
The read/write head is the component that reads data from and writes data to the platters. The actuator arm moves the head, and the spindle rotates the platters.

Discuss this Question (0)

No comments yet. Be the first to start the discussion!

Practice More Memory and Storage Devices Questions

Question #1
What does the abbreviation 'NVMe' signify in modern high-speed solid state drive engineering architectures?
A. New Vector Memory Encryption
B. Non-Volatile Memory Express
C. Network Volume Media Extension
D. Node Vector Management Engine

Correct Answer: Option B


Explanation:
NVMe stands for Non-Volatile Memory Express. It is a communication protocol developed specifically for accessing high-speed storage media, like SSDs, via PCIe lanes.

This question belongs to: Computer Memory and Storage Devices
Question #2
What characteristic of a computer system is optimized when a designer adds more channels to the main system memory bus layout?
A. The resolution of the external monitor display.
B. The permanent storage durability of the ROM firmware.
C. The maximum capacity of the secondary storage drives.
D. The system memory bandwidth and data throughput rates.

Correct Answer: Option D


Explanation:
Adding more memory channels increases the width of the data bus between the CPU and RAM, allowing more data bits to transfer simultaneously and boosting system memory bandwidth.

This question belongs to: Computer Memory and Storage Devices
Question #3
What is the function of 'Wear Leveling' algorithms implemented inside Solid State Drives?
A. To distribute write operations evenly across flash blocks to prevent premature cell failure.
B. To equalize the weight distribution of the internal electronic boards.
C. To accelerate the rotational velocity of the external data interfaces.
D. To delete old software files automatically when space drops below ten percent.

Correct Answer: Option A


Explanation:
Because flash memory blocks endure a finite number of write cycles, wear leveling algorithms distribute writes evenly across the physical medium to extend the drive's operational lifespan.

This question belongs to: Computer Memory and Storage Devices