Which invention, first commercially used in a Cincinnati supermarket in 1974, revolutionized retail by allowing automated product identification and inventory tracking?

The retail landscape has been transformed by numerous technological innovations throughout history. From humble beginnings to cutting-edge advancements, these discoveries have changed how we shop and interact with products. This trivia question focuses on a pivotal retail innovation that revolutionized inventory management and checkout efficiency worldwide. Test your knowledge about this game-changing retail technology!

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• The Universal Product Code (UPC) barcode system
• The electronic cash register (ECR)
• RFID (Radio-Frequency Identification) tags
• The magnetic strip credit card reader

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