ROM is best described as?

ROM is best described as?

• A. A volatile memory that loses contents when powered off
• B. A memory that retains contents when powered off
• C. A type of solid-state storage
• D. A cache memory for the CPU

Answer: (B)

ROM is non-volatile memory, meaning it keeps its data even when power is removed. It stands for Read-Only Memory, with contents typically fixed at manufacture or changeable only through special procedures. This persistence makes ROM ideal for firmware that must be available to boot and initialize the system after each power cycle. It isn’t like RAM, which is volatile and loses data when powered off, nor is it a mass-storage device like an SSD, and it isn’t a CPU cache, which is a small, fast, volatile memory used during operation.

ROM is non-volatile memory, meaning it keeps its data even when power is removed. It stands for Read-Only Memory, with contents typically fixed at manufacture or changeable only through special procedures. This persistence makes ROM ideal for firmware that must be available to boot and initialize the system after each power cycle. It isn’t like RAM, which is volatile and loses data when powered off, nor is it a mass-storage device like an SSD, and it isn’t a CPU cache, which is a small, fast, volatile memory used during operation.