What feature of read-only memory (ROM) makes it particularly useful?

Computer Mcqs for PPSC, FPSC, NTS, and Pakistan government job tests. Select an option below, then read the explanation.

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Subject
Computer Mcqscomputer-mcqs
Published
30 May 2017
Last updated
28 May 2026

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Choose the correct answer

Explanation

Option B is correct because ROM is non-volatile memory, meaning it preserves the stored data even when the device is powered off. This makes it valuable for storing firmware and essential instructions. The other options are incorrect: ROM data is generally not easily changed (A), it does not provide large, inexpensive storage compared to other memory types (C), and ROM chips are typically not designed for easy swapping across different computer brands (D).

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