Which invention, first used in a Cincinnati supermarket in 1974, transformed retail data collection and is considered the foundation of modern retail analytics?

In the world of retail, data analysis has transformed how businesses understand consumer behavior. One particular technological breakthrough fundamentally changed how retailers collect and process customer information, leading to the modern era of personalized shopping experiences. This discovery revolutionized inventory management, pricing strategies, and customer loyalty programs. Test your knowledge about this pivotal retail innovation that bridged the physical and digital shopping worlds.

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Universal Product Code (UPC) barcode scanner
Electronic point-of-sale (EPOS) system
Radio-frequency identification (RFID) tags
Electronic shelf labels (ESL)