RAM (Random Access Memory), or Volatile Memory, is the most common type of primary memory found in modern computers. Since it is a component of the motherboard, it is often referred to as a type of "built-in" memory. An actual "stick" of RAM is called a module. RAM modules consist of many chips responsible for storing information temporarily.These chips are grouped onto a circuit board and inserted into memory banks located on the motherboard.The two most common modules are single in-line memory modules (SIMMs) and dual in-line memory modules (DIMMs). Most computers have somewhere between 256 megabytes and 2 gigabytes of RAM. The more RAM a computer has, the faster it functions. Since RAM is a volatile form of memory, when a computer is turned off, all of the imformation stored in RAM is disposed of.