Every computer requires a primary memory(RAM) to store small amounts of data for quick access while the machine is functional.

RAM or Random Access Memory is used to temporarily store data while the CPU is busy executing other tasks. Below are the two main types of RAM implemented in computational systems.

SRAM or Static RAM: stores data in the memory as long as there is a power supply to the system, and there is no need of refreshing it periodically. They are faster, but at the same time, they are too expensive.

DRAM or Dynamic RAM: stores binary information in the form of electric charges in capacitors. It cannot retain this information for a long time. So, the capacitors are often refreshed.

SRAM is of smaller size but DRAM available in larger storage capacity, thus making it the most common type used in the primary memory of computer systems.

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