Question

Which type of memory is non-volatile and retains data even when the computer is turned off, making it essential for storing firmware and booting instructions?

• A. RAM
• B. ROM
• C. CACHE
• D. Register

Hint:

ROM is non-volatile memory used to store firmware that helps start up your computer even after it's powered off.

Answer 1

The Correct Option is B

Step 1: Understanding the term 'non-volatile'
Non-volatile memory is a type of memory that retains stored data even when the power supply is turned off.


Step 2: Role of ROM
ROM (Read-Only Memory) is non-volatile in nature.
It stores firmware, which includes permanent instructions for booting up the computer and initiating hardware components.


Step 3: Why not the other options?
RAM is volatile and loses data when power is off.
Cache is a small, fast memory located close to the CPU but is volatile.
Registers are part of the CPU and store temporary data; they are also volatile.


Step 4: Conclusion
Since only ROM retains data without power and is used for booting instructions, the correct answer is (2) ROM.