Data memory device

摘要: A compact portable card-shaped data memory device which effectively accesses stored coded has a power supply consisting of plurality horizontally arranged solar cells fitted to one side printed circuit board, both sides are impressed with circuit. The other the board is semiconductor chips respectively constituting and microcomputer for converting read out said into serial data, light-emitting element optically controlled in conformity data. drive system supplied electric energy delivered from device. section including sealed synthetic resin case, thereby constructing wholly flat card form.