Which invention, first used commercially in 1974 at an Ohio supermarket, fundamentally transformed retail by allowing automatic product identification and inventory tracking?

The world of retail has been transformed by technological innovations that changed how we shop forever. From humble beginnings to sophisticated systems, retail technology has evolved dramatically over the decades. This trivia tests your knowledge about a groundbreaking invention that revolutionized the checkout process and inventory management in stores worldwide.

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Universal Product Code (UPC) barcode scanning system
Electronic cash register with digital display
Magnetic strip credit card reader
Automated inventory management software