Which of the following is a nonvolatile memory device?
A) optical memory device
B) main memory
C) hard drive
D) random access memory

Question

Quizplus · Accepted Answer

A nonvolatile memory device is one that can retain data even when the power is turned off. Optical memory devices, such as compact discs and DVDs, are nonvolatile because the data is physically burned onto the disc and remains even when the power is off. Main memory (also known as RAM) and random access memory (also known as ROM) are volatile, meaning they require power to maintain data. Hard drives are considered volatile because they require power to spin the disk and read/write data to it.

Which of the Following Is a Nonvolatile Memory Device