Flash memory is a long-term power non-volatile memory

Flash memory is a long-term power non-volatile memory, it can be called block delete the storage unit and adapted.

 

Flash memory is electrically erasable read only memory (EEPROM) of the variants, EEPROM and flash memory is different is that it can be removed at the byte level and rewritten, so that the update EEPROM to slower than flash.

 

Flash is often used to hold control code, such as in the personal computer's basic input output system (BISO).

 

When BIOS needs to be changed (rewritten), the flash memory can be written to block (rather than byte) sizes, making it easier to be updated. On the other hand, flash memory, random access memory like (RAM) as useful, because any access memory must be in bytes (rather than block) level can be set to address.