non-volatile memory that can be used as a substitute for storage on the hard drive
Flash memory is
non-volatile computer memory that can be electrically erased and reprogrammed. It is a technology that is primarily used in
memory cards, and
USB flash drives (thumb drives, handy drive, memory stick, flash stick, jump drive) for general storage and transfer of data between computers and other digital products. It is a specific type of
EEPROM that is erased and programmed in large blocks; in early flash the entire chip had to be erased at once. Flash memory costs far less than byte-programmable EEPROM and therefore has become the dominant technology wherever a significant amount of non-volatile, solid-state storage is needed. Examples of applications include
PDAs and laptop computers,
digital audio players,
digital cameras and
mobile phones. It has also gained some popularity in the game console market, where it is often used instead of EEPROMs or battery-powered
static RAM (SRAM) for game save data.
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