RAM is a type of computer memory. It stands for Random Access Memory. It is often called primary memory or main memory of a computer. It is the most common type of memory found in computers and other electronic gadgets and devices like smart-phones, printers, tablets etc.
It is a type of memory which can be accessed randomly and thus is is know as random access memory. Though several modern types of DRAM are not actually random access as the data is read in bursts.
RAM is often called a volatile or temporary memory because the information stored in RAM is lost if the power supply is turned off.
The two main types of RAM:
Note: While the term ‘main memory’ is mostly referred to RAM, sometimes the term can also be used to collectively describe RAM, cache memory and ROM.