The full form for EEPROM is Electrically Erasable Programmable Read Only Memory. These allow for the erasing of individual bytes or the entire memory space electrically without the need of UV light. The individual bytes can be easily erased without having to erase everything on the chip. Even though the process of burning is longer than the EPROM, they are worth the wait.
EEPROM is also called non-volatile memory, as when it is turned off, the stored data in the chip will not be erased. All the new EEPROM will not have any data in it and will have to be programmed by an EEPROM chip programmer before it can be used. All the information stored in this type of memory can be retained for many years even without a steady power supply offering many benefits to the users.
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