(Dynamic Random Access Memory)- Uses capacitors to store information. By using a charging circuit, capacitors are capable of storing 1 and 0 bits as charged and discharged states respectively. Because capacitors are incredibly fast, inexpensive and dense, today the most commonly deployed type o ram is an improvement of DRAM known as synchronous DRAM. One of the downsides of using capacitors is that they lose their charge quickly, leading to volatile memory. See also: SDRAM, SRAM