Which type of storage is categorized as volatile memory?

Volatile memory refers to a type of computer memory that requires power to maintain the stored information. When the power is turned off, all data held in volatile memory is lost. RAM (Random Access Memory) is a prime example of volatile memory because it temporarily holds data that the CPU is currently processing. When you turn off your computer or reset it, all information stored in RAM is cleared.

In contrast, ROM (Read-Only Memory) is non-volatile, meaning it retains its data even when the power is off. Secondary storage (such as USB drives or SSDs) and hard disks are also non-volatile storage options, as they store data permanently until it is intentionally deleted or overwritten, regardless of whether the power is on or off. Understanding these distinctions helps in recognizing how different memory types function in relation to power supply and data retention.