A stick of DDR3 RAM that is for laptops

Random-access memory (or simply RAM) is the memory or information storage in a computer that is used to store running programs and data for the programs. Data (information) in the RAM can be read and written quickly in any order. Normally, the random access memory is in the form of computer chips. Usually, the contents of RAM are accessible faster than other types of information storage.However, RAM is volatile, which means that every time the computer is turned off, all the data in the RAM is lost. The alternative to this, Non-volatile random-access memory (NVRAM), which keeps its data without using power, is more expensive and works slower, so it is used in smaller amounts.