Which memory type holds permanent instructions that cannot be changed and is responsible for BIOS function?

Which memory type holds permanent instructions that cannot be changed and is responsible for BIOS function?

• A. Random Access Memory
• B. ROM
• C. Cache
• D. Hard Drive

Answer: (B)

Non-volatile firmware memory holds the instructions that run at power-up to initialize hardware and start the operating system. This is ROM, which retains data without power and is normally read-only, so it stores the BIOS. RAM is volatile and used for active data, cache is a small fast volatile memory, and a hard drive stores files rather than boot firmware. So the memory type that holds permanent boot instructions is ROM.

Non-volatile firmware memory holds the instructions that run at power-up to initialize hardware and start the operating system. This is ROM, which retains data without power and is normally read-only, so it stores the BIOS. RAM is volatile and used for active data, cache is a small fast volatile memory, and a hard drive stores files rather than boot firmware. So the memory type that holds permanent boot instructions is ROM.