DRAM
Short for Dynamic Random Access Memory, DRAM is one of the most commonly found memory modules in PC compatible personal computers and workstations. DRAM stores its information in a cell containing a capacitor and transistor; because of this design, these cells must be refreshed with new electricity every few milliseconds allowing the memory to keep its charge and hold the data as long as needed.
When using this memory, if the computer is powered off, the information within memory will be lost.
Also see: Dynamic, FRAM, Memory definitions, RIMM. SRAM