What characterstic of read only memory (ROM) makes it useful ?
Correct answer: B. Data in ROM is non volatile, that is, it remains there even without electrical power
- A. ROM information can be easily updated
- B. Data in ROM is non volatile, that is, it remains there even without electrical power
- C. ROM provides very large amounts of inexpensive data storage
- D. ROM chips are easily swapped between different brands of computers
Explanation
ROM is non-volatile, meaning its stored contents remain available when electrical power is removed. Its contents are not normally updated easily, and ROM is not intended as large-capacity general storage.
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