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Q. |
What characteristic of read-only memory (ROM) makes it useful? |
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. |
Answer» B. data in rom is non-volatile, that is, it remains there even without electrical power. |
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