How does pendrive work

Thumb drive stores any data through flash memory, Flash memory uses EEPROM to store or retrieve any data, the full name of EEPROM is Electrically Erasable Program Read Only Memory. It is similar to the computer's non-volatile memory, which acts like a microcontroller in any card, compressing the speed and data of the thumb drive through EEPROM and fitting it into a small space. Thumb drive non-volatile This means that they do not need any battery backup.