DRAM, or Dynamic Random Access Memory, is a type of computer memory that stores data temporarily. It is widely used in devices like computers, smartphones, and tablets to provide fast access to data that the processor needs while performing tasks. Unlike SRAM (Static Random Access Memory), which retains data as long as power is supplied, DRAM needs to be refreshed thousands of times per second to maintain the stored information. DRAM is made up of tiny capacitors and transistors that work together to hold bits of data. Each bit is stored in a capacitor, which can either hold a charge (representing a 1) or not hold a charge (representing a 0). This structure allows DRAM to be more compact and cost-effective than other memory types, making it a popular choice for high-performance computing applications.