NOR和NAND是现在市场上两种主要的非易失闪存技术。Intel于1988年首先开发出NOR flash技术，彻底改变了原先由EPROM和EEPROM一统天下的局面。紧接着，1989年，东芝公司发表了NAND flash结构，强调降低每比特的成本，更高的性能，并且象磁盘一样可以通过接口轻松升级。但是经过了十多年之后，仍然有相当多的硬件工程师分不清NOR和NAND闪存。-NOR and NAND market is now two main types of non-volatile flash memory technology. Intel in 1988 developed the first NOR flash technology, completely changed the original from EPROM and EEPROM dominated situation. Then, in 1989, Toshiba made a NAND flash structure, emphasis on reducing the cost per bit, higher performance, and as the disk can easily upgrade through the interface. But after more than a decade later, there is still a considerable number of hardware engineers distinguish NOR and NAND flash memory.