In 1984, Toshiba Fujio Masuoka, inventor of the company first proposed a fast flash memory (here referred to as flash memory) concept. Different from traditional computer memory, flash memory is characterized by a non-volatile (that is, the data stored on the host will not be lost after power off), the recording speed is very fast. Intel is the world's first production of flash memory and its market companies.
In 1988, the company introduced a 256K bit memory chips. It is like the size of a shoebox, and was embedded in a tape recorder. Later, Intel invented this type of flash memory is referred to as NOR flash. It combines the EPROM (Erasable Programmable Read Only Memory) and EEPROM (electrically erasable programmable read only memory) the two technologies, and has a SRAM interface.
The second is called NAND flash memory. It consists of Hitachi developed in 1989 and is considered the ideal replacement for NOR flash. NAND flash NOR flash memory write cycles shorter than 90%, save and delete its processing speed is relatively fast. NOR NAND memory cell is only half the storage space in a smaller gain in the NAND better performance. Given the excellent performance of NAND, which is often used, such as CompactFlash, SmartMedia, SD, MMC, xD, and PC cards, USB sticks and other memory card.
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