Random Access Memory (RAM) is a type of computer memory that temporarily stores data and programs that a computer is currently using. It allows for quick read and write access, enabling the processor to retrieve and manipulate information efficiently. The more RAM a computer has, the more tasks it can handle simultaneously without slowing down. When you turn off your computer, the data in RAM is lost, as it is volatile memory. This is different from hard drives or solid-state drives, which store data permanently. RAM is essential for smooth performance in applications, games, and multitasking.