Which retail innovation, first successfully implemented in 1974, revolutionized inventory management and checkout processes worldwide?

Throughout history, technological innovations have revolutionized how people shop. From ancient marketplaces to modern digital commerce, retail has evolved dramatically. This trivia question focuses on a pivotal innovation from the 20th century that fundamentally transformed the retail landscape and set the foundation for modern shopping experiences. Test your knowledge of retail history and see if you can identify which technology truly changed the game for merchants and consumers alike.

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Universal Product Code (UPC) barcode scanning system
Electronic point-of-sale terminals with integrated credit card readers
Automated inventory tracking using RFID technology
Computerized cash registers with digital receipts