What type of memory is ROM?

• A. Volatile Memory
• B. Dynamic Memory
• C. Non-Volatile Memory
• D. Flash Memory

Answer: (C)

The type of memory referred to as ROM, or Read-Only Memory, is classified as non-volatile memory. This means that it retains its data even when the power is turned off, unlike volatile memory, which loses its stored information when there is no power. ROM is primarily used to store firmware or software that is closely tied to the hardware and does not change frequently, such as the BIOS in a computer.

In contrast, dynamic memory, typically associated with DRAM, requires constant power and refreshing to maintain data. Flash memory is a type of non-volatile memory but is different from ROM in that it can be re-written and erased, making it quite versatile for storage devices like USB drives and SSDs. Therefore, while flash memory is also non-volatile, it differs from the traditional characteristics and usage of ROM.