Which retail innovation, invented by Norman Joseph Woodland and Bernard Silver in 1952, wasn't widely implemented until the 1970s but now processes over 5 billion transactions daily?

The retail landscape has been transformed by countless innovations that changed how we shop forever. Some inventions solved age-old problems in surprising ways, while others created entirely new shopping paradigms. This trivia question focuses on a pivotal retail technology that revolutionized inventory management and checkout processes worldwide. Do you know which invention truly changed the game?

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Universal Product Code (Barcode)
Electronic Article Surveillance (Anti-theft tags)
Point of Sale (POS) Terminal
RFID (Radio-frequency identification) Tags