Which type of memory loses its data when the power is turned off?

• A. Read-Only Memory
• B. Flash Memory
• C. Random Access Memory
• D. Hard Drive Memory

Answer: (C)

Random Access Memory (RAM) is the type of memory that loses its data when the power is turned off. RAM is classified as volatile memory, which means it requires constant power to retain the information stored within it. When the computer is turned off or when the RAM is no longer receiving power, the data contained in RAM is wiped clean.

In contrast, Read-Only Memory (ROM) retains its data regardless of power status, as it is designed to store firmware and other critical programs permanently. Flash memory, while also capable of retaining data without power, is a type of non-volatile storage that allows for data to be rewritten and reprogrammed, unlike RAM. Hard drive memory, whether it's traditional magnetic or solid-state, is also non-volatile, meaning it does not lose data when power is removed, allowing for long-term data storage. These characteristics of RAM highlight its specific role in providing temporary, fast access to data that supports active processes while the computer is running.