Which groundbreaking retail technology was first commercially used in 1974 at a Marsh Supermarket in Ohio, fundamentally changing inventory management and laying the foundation for modern IoT in retail?

The world of retail has been transformed by technological innovations that changed how we shop forever. From simple barcode scanners to sophisticated IoT devices that track inventory in real-time, retail technology has a fascinating history of invention and discovery. This trivia question focuses on a pivotal moment in retail technology that set the stage for today's interconnected shopping experience. Test your knowledge about the origins of a technology we now take for granted!

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Universal Product Code (UPC) barcode scanning
Electronic article surveillance (EAS) anti-theft tags
Electronic point-of-sale (EPOS) cash registers
Radio-frequency identification (RFID) inventory tracking