Which is an example of non-volatile memory?

Which is an example of non-volatile memory?

• A. RAM
• B. ROM
• C. Cache
• D. Registers

Answer: (B)

Non-volatile memory preserves data even when power is removed, which is essential for storing things like firmware that must survive a reboot. ROM is an example of this because the information it contains is written once (usually during manufacture) and remains intact without power. It provides the basic instructions the system needs to start up. In contrast, RAM, cache, and registers are volatile; they lose their contents when the power is off. RAM holds data and programs while the computer is running and requires power to retain that information. Cache and registers are tiny, ultra-fast storage areas used by the CPU for immediate operations and also lose data without power. So ROM is the non-volatile memory among the options.

Non-volatile memory preserves data even when power is removed, which is essential for storing things like firmware that must survive a reboot. ROM is an example of this because the information it contains is written once (usually during manufacture) and remains intact without power. It provides the basic instructions the system needs to start up.

In contrast, RAM, cache, and registers are volatile; they lose their contents when the power is off. RAM holds data and programs while the computer is running and requires power to retain that information. Cache and registers are tiny, ultra-fast storage areas used by the CPU for immediate operations and also lose data without power.

So ROM is the non-volatile memory among the options.