Which retail technology invention, first demonstrated in 1974 by Norman Joseph Woodland and Bernard Silver, is estimated to save the global retail industry over $50 billion annually through improved inventory tracking?

The retail landscape has been transformed by numerous technological innovations throughout history. Some inventions have completely revolutionized how consumers shop and how retailers operate. This trivia question focuses on a groundbreaking retail technology that changed the industry forever. Test your knowledge about this significant retail invention that bridged the physical and digital shopping experience!

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RFID (Radio-Frequency Identification) tags
Universal Product Code (UPC) barcode
Electronic article surveillance (EAS) tags
Digital price tags