Random access memory (RAM) is a type of computer memory that can directly access any storage location and read and write data quickly. The characteristic of RAM is data volatility, that is, the stored data will be lost when the power is turned off. RAM can be divided into types such as dynamic random access memory (DRAM) and static random access memory (SRAM). In computer systems, RAM usually serves as a temporary data storage medium for the operating system or other running programs.