DRAM (Dynamic random access memory):
Is an enhancement over SRAM. DRAM has a different approach towards storing the 1s and 0s. DRAM stores information as charges in very small capacitors, instead of transistors.
Stores each bit of data in a separate capacitor. If a charge exists in a capacitor, it's interpreted as a 1. The absence of a charge will be interpreted as a 0.
Uses capacitors instead of switches. As the capacitor leaks electrons, the information gets lost eventually, unless the charge is refreshed periodically, therefore it uses a constant refresh signal to keep the information in memory. Because it must be refreshed periodically, it is called dynamic memory.
Needs more power than SRAM to refresh signals, therefore, is mostly found in desktop computers.
