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The smart card. Pocket-sized data storage.

Whether you are using your mobile phone or you are out shopping – smart cards are found everywhere. This invention is thanks to German radio engineer Jürgen Dethloff who, together with Helmut Gröttrup, devised the idea of the small storage card in 1969. An exhibition at the communications department of the Deutsches Museum in Munich explains how microchips have changed the world and are used in everyday life.