What characterstic of read only memory (ROM) makes it useful?
AROM provides very large amounts of inexpensive data storage
BData in ROM is non volatile, that is, it remains there even without electrical power
CROM chips are easily swapped between different brands of computers
DROM information can be easily updated
Correct answer
B. Data in ROM is non volatile, that is, it remains there even without electrical power
Explanation
The correct answer is Data in ROM is non volatile, that is, it remains there even without electrical power.