Q. What characteristic of read-only memory (ROM ) makes it useful?
A) Data in ROM is non volatile, that is, it remains there even without electrical power
B) ROM informationcan be easily updated
C) ROM chips are easily swapped between different brands of computers
D) ROM provides very large amounts of inexpensive data storage
✔ Correct Answer: Data in ROM is non volatile, that is, it remains there even without electrical power
Exam Insight
The key characteristic of ROM is that its data is non-volatile, meaning it retains information even when the power is turned off, making it ideal for storing firmware.