PASCAL GOETGHELUCK / SCIENCE PHOTO LIBRARY PASCAL GOETGHELUCK / SCIENCE PHOTO LIBRARY
Scanning a salmon. Conceptual image showing a shopper in the near future scanning a salmon in a supermarket. A radio frequency identification (RFID) tag on the salmon's wrapping sends its details to the display unit (lower left) on the shopping trolley. Many items are already equipped with RFID tags.
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