Q. What characteristic of read-only memory (ROM) makes it useful? (Solved)
1. rom information can be easily updated.
2. data in rom is non-volatile, that is, it remains there even without electrical power.
3. rom provides very large amounts of inexpensive data storage.
4. rom chips are easily swapped between different brands of computers.
- b. data in rom is non-volatile, that is, it remains there even without electrical power.