Which of the following is a characteristic of a read-only memory (ROM)? MCQ with Answer and Explanation

Which of the following is a characteristic of a read-only memory (ROM)?
A. Data is permanent and cannot be changed by normal operations
B. It is volatile
C. Data can be modified easily
D. It is used as main memory
Answer: Option A
Solution (By JKSSB Mock Tests)
ROM is non-volatile and its contents are typically fixed during manufacturing or programming; it cannot be changed by normal system operations.

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Practice More Memory and Storage Devices Questions

Question #1
What does the term 'random access' mean in memory?
A. Data can only be accessed sequentially
B. Data is accessed randomly without addressing
C. Data can be accessed in any order with the same access time
D. Access time depends on the data location

Correct Answer: Option C


Explanation:
Random access memory (RAM) allows any memory location to be accessed directly in roughly the same amount of time, regardless of its physical location.

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 maximum capacity of the secondary storage drives.
B. The permanent storage durability of the ROM firmware.
C. The resolution of the external monitor display.
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 type of storage is a CD-ROM?
A. Semiconductor storage
B. Magnetic storage
C. Solid-state storage
D. Optical storage

Correct Answer: Option D


Explanation:
CD-ROM (Compact Disc Read-Only Memory) uses laser beams to read microscopic pits and lands on the surface of the disc, classifying it as optical storage.

This question belongs to: Computer Memory and Storage Devices