A Promellian memory coil
A memory coil was a memory storage device used by the Promellians in the 14th century. They were the equivalent of the Federation's isolinear optical chips. (TNG: "Booby Trap")
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Memory Alpha
A Promellian memory coil
A memory coil was a memory storage device used by the Promellians in the 14th century. They were the equivalent of the Federation's isolinear optical chips. (TNG: "Booby Trap")