Flash Memory
Flash memory is a data storage medium that is built into the hardware. It does not require its own power supply and is not dependent on moving parts. Flash memory evolved from EEPROM (Electrical Erasable and Programmable Read Only Memory) and is installed in most devices. Similar to hard drives, flash memory permanently retains the data that is stored on it. Also, data is read out, written, and erased in data blocks of 64, 128, etc. bytes.