Figure showing the writing, storing and erasing process in a QD based memory cellBackground
Computer data storage can be classified into volatile and non-volatile storage. Volatile memories like dynamic random access memories (DRAMs) are short-term memories with high write speed but require an external power source for data storage. Whereas non-volatile flash memories do not need an external power source, store data for years but write information about 1000 times slower than DRAMs.