Q. What characteristic of read only memory (ROM) makes it useful? (Solved)
1. ROM information can be easily updated
2. Data in ROM is nonvolatile, that is, it remain 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
5. None of these
- b. Data in ROM is nonvolatile, that is, it remain there even without electrical power