Question

Given below are two statements: Assertion (A): A Read only memory (ROM) does not lose its data after restarting the computer system. Reason (R): A non-volatile storage unit loses data stored in it in case of power off or interruption of power. Choose the most appropriate answer.

• A. Both (A) and (R) are correct and (R) is the correct explanation of (A)
• B. Both (A) and (R) are correct but (R) is not the correct explanation of (A)
• C. (A) is correct but (R) is not correct
• D. (A) is not correct but (R) is correct

Hint:

Volatile memory loses data after power off; non-volatile memory retains data after power off.

Answer 1

The Correct Option is C

Step 1: Understanding the Question:

• This question consists of an Assertion and a Reason evaluating the volatile/non-volatile characteristics of computer memory, specifically Read-Only Memory (ROM).

• We need to determine the truth value of both statements based on the principles of computer storage.

Step 2: Detailed Explanation:

• Evaluating Assertion (A): Read-Only Memory (ROM) is a type of electronic storage that contains permanent or semi-permanent data. Unlike Random Access Memory (RAM), it is non-volatile, meaning it retains its stored data even when the computer system is powered off or restarted. ROM typically stores the firmware (BIOS/UEFI) required to boot up the system. Thus, Assertion (A) is correct.

• Evaluating Reason (R): By definition, non-volatile storage refers to memory that does not lose its data when power is turned off or interrupted. Hard drives, solid-state drives, flash drives, and ROM are all non-volatile. The memory type that loses its data during power loss is volatile memory (such as RAM). Therefore, the statement “A non-volatile storage unit losses data...” is factually incorrect.

• Since Assertion (A) is true and Reason (R) is false, the correct choice is Option (C).

Step 3: Final Answer:
The correct option is (C).