Which combination lists internal memory components?

• A. RAM, USB, CM, DVD
• B. CMOS, CD, ROM, CM
• C. CMOS, RAM, ROM, CM
• D. RAM, ROM, USB, CD

Answer: (C)

Internal memory components are the memory types built into the computer itself, used for immediate data access, firmware storage, and fast CPU access. RAM holds data while programs run and is volatile. ROM stores firmware and is non-volatile. CMOS stores BIOS/configuration data and is a small, battery-backed memory. Cache Memory (CM) provides ultra-fast storage close to the CPU to speed up data access.

The option that lists CMOS, RAM, ROM, and CM includes all of these internal memory types, so it represents internal memory components. Options that include USB, CD, or DVD refer to external or removable devices, not internal memory, so they aren’t correct.