What is DRAM?

DRAM (Dynamic Random-Access Memory) is a type of semiconductor memory that is widely used as main memory in computers and other digital devices. It stores each bit of data in a separate capacitor within an integrated circuit. Since capacitors leak charge, the information must be periodically refreshed, hence the term 'dynamic'. DRAM is volatile memory, meaning it loses its data when power is removed. It is commonly used for system memory due to its relatively low cost and high capacity compared to other memory technologies like SRAM.