Explain erasable programmable rom (eprom) - computer memory, Computer Engineering

Explain Erasable Programmable ROM (EPROM) - Computer Memory?

An EPROM is a ROM that can be reprogrammed and erased. A little glass window is installed at the top of the ROM package, by which you can actually see the chip that holds the memory. Ultraviolet light of a explicit frequency can be shined through this window for a specified period of time which will erase the EPROM and allow it to be reprogrammed again.

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