What's the diference between NAND & NOR Flash?

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Can anyone explain the diference between NAND & NOR Flash?

Thanks.
 

NOR technology flash features highspeed,
random access to bit storage and low error rates, but offers less density than
NAND flash technology. It has high endurance—that is, it can reliably support up to one
million program/erase cycles without requiring error correction
NAND technology ties a string of 16 or 32 single-bit-storage transistors together. This
structure reduces the number of memory array contacts and allows greater density. The
trade-offs involved with implementing this structure are 1) data cells must accessed
sequentially, and 2) read and write errors are more prevalent. As a result, NAND devices
require error correction
 

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**broken link removed**
 

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