DRAM vs SRAM

Dynamic random-access memory (DRAM)

Dynamic random-access memory (DRAM) is a type of random-access memory that stores each bit of data in a separate capacitor within an integrated circuit.

The capacitor can be either charged or discharged; these two states are taken to represent the two values of a bit, conventionally called 0 and 1.

DRAM is the memory we use as physical memory that helps the PC/laptop to run applications.

A DRAM storage cell is dynamic in that it needs to be refreshed or given new electronic charges every few milliseconds to compensate for charge leaks from the capacitor.

example PC/laptop it has 2GB of RAM.

Static random-access memory (SRAM)

SRAM (static RAM) is random access memory (RAM) that retains data bits in its memory as long as power is being supplied.

SRAM does not have to be periodically refreshed.

example of SRAM is SRAM is used as cache memory.