ROM stands for Read Only Memory. Which description best matches ROM?

• A. A volatile memory used for temporary data
• B. Read Only Memory- Permanent instructions that cannot be changed. It makes the BIOS function.
• C. An external storage device
• D. A wireless communication module

Answer: (B)

ROM is non-volatile memory that retains data without power, and it usually stores permanent firmware. This is why it’s used to hold the BIOS, providing essential instructions to start up and initialize hardware every time the computer boots. Since ROM is read-only or hard to change, its contents aren’t meant for everyday data storage or frequent updates, which is why the description of permanent, unchangeable instructions that enable the BIOS is the best match. The other options describe memory or devices that aren’t ROM: volatile memory used for temporary data (RAM), external storage like a hard drive or USB drive, and a wireless module, which are different concepts altogether.