DRAM is a type of RAM used as the main memory in several computing devices, such as desktop and notebook computers, servers, and high-end workstations. It is the most widely used semiconductor memory used in current generation computers, and offers several significant advantages, such as structural simplicity, very high packing densities, low power consumption, and sufficiently high data read/write speeds. This type of memory has undergone several innovative technological developments and offers very high price/performance ratios.