Which of these retail innovations was first patented in 1952, but didn't see widespread adoption in stores until the 1970s when computing power became more affordable?

The retail landscape has been transformed by groundbreaking inventions and discoveries throughout history. From simple tools to complex systems, these innovations have revolutionized how merchants sell and how consumers shop. This trivia question explores a pivotal retail technology that altered the industry forever. Test your knowledge of retail history and the inventions that shaped modern commerce!

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RFID (Radio-Frequency Identification) tags for inventory tracking
The barcode scanner/Universal Product Code (UPC) system
Self-checkout kiosks
Electronic point-of-sale (EPOS) systems