2716 EPROM and LEDs - Read/Erase/Program/Unerase?
Reading memory locations in a 2716 EPROM (Erasable Programmable Read Only Memory). Erasing the EPROM using Ultraviolet light. Programming the EPROM using primitive (and frankly disreputable) techniques. Damaging the EPROM, but restoring its data in the process? Weird day :)