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What are the differences between EPROM, EEPROM and flash memory?
After working with each of them for years:
EPROM = Erasable Programmable Read-Only Memory (erasable by exposure to ultraviolet light)
EEPROM = Electrically EPROM (erasable by using the proper electrical signals)
Flash = memory that is static in nature (after taking power away it retains the values), but can be easily changed just like the dynamic memory in everyday computers without additional wires.
Here's a more extensive article on the subject:
http://en.wikipedia.org/wiki/Computer_memory
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