The Erasable programmable read-only memory reference article from the English Wikipedia on 24-Apr-2004 (provided by Fixed Reference: snapshots of Wikipedia from wikipedia.org)

Erasable programmable read-only memory

An Erasable programmable read-only memory (EPROM) is a computer memory chip which is normally read only, but can be erased and then re-programmed.

There are two main types:

1. UV erasable, these have a window in the middle of the package. Shining ultraviolet light onto the window will erase the memory in, typically, 10 to 20 minutes.
2. Electrically erasable, see EEPROM.

See also Programmable read-only memory.

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