A computer system memory, also commonly known as random access memory (RAM), is a hardware component used to store data and programs. The memory is typically composed of semiconductor-based memory devices, such as dynamic random access memory (DRAM) and static random access memory (SRAM).

The memory stores the operating system, application programs and user data. When the computer is turned off, the information in the memory is lost. The memory is also volatile, which means that it loses its contents when the power is turned off.

The amount of memory a computer has is typically measured in megabytes (MB), gigabytes …