Random access memory (RAM) stores data for active programs. The data stored by RAM is lost every time the computer is shut down.
Types of RAM – There are three main types of RAM: DDR, DDR2, and DDR3. The higher number, the faster it is. Different types aren't usually compatible on the same system.
- Purchasing It is important to know what kind of RAM is compatible with your motherboard when choosing what kind to buy. Since most motherboards include at least two RAM slots, you should purchase a pair of RAM cards that best suit your needs.