Difference between RAM and RAM Random Access Memory is the full form of RAM . It is possible to temporarily store data in RAM and read data from RAM. Volatile memory , that is , the data stored in the RAM is erased when the power supply is cut off. Running programs and recurring data are stored in RAM. Access time is relatively short. It does not contain any data at the time of creation. Prices are relatively low. Flip-flops are used in making. Classification of static radham , dynamic radham, etc. radham. ROM ( ROM) The full form of ROM is Read Only Memory . Usually data is stored permanently only once in ROM and it is possible to read the saved data anytime if required . RAM is not volatile memory , meaning data stored in RAM is not deleted even when power supply is cut off. Data and programs that do not require easy modification are stored in ROM. Access time is relatively long. It contains some of the necessary data when creating. The price is relatively high. Flip-flops are not used in making. Classification of ROMs like PROM, EPROM, EEPROM etc.