Eproms the demise of arcade

EPROM (erasable programmable read-only memory) is programmable read-only memory (programmable ROM) that can be erased and re-used. Erasure is caused by shining an intense ultraviolet light through a window that is designed into the memory chip. (Although ordinary room lighting does not contain enough ultraviolet light to cause erasure, bright sunlight can cause erasure. For this reason, the window is usually covered with a label when not installed in the computer.)

Most eproms no longer are being made so these blank eproms are seating on shelfs with their uv windows exposed becuase stupid chip sellers do not understand that uv light will damage eproms over long periods of time.

Hopfully in the next few years we can get better eprom replacements