Which retail technology innovation was first introduced by Kroger in 1972 and transformed inventory management worldwide?

The retail landscape has been transformed by technological innovations that reshape how consumers shop and how businesses operate. From Amazon's pioneering algorithms to self-checkout systems and mobile payment solutions, retail tech has evolved dramatically over the past few decades. This trivia question explores a groundbreaking retail technology that fundamentally changed the industry and set new standards for efficiency and customer convenience.

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• Universal Product Code (UPC) barcode scanning
• Electronic shelf labels (ESLs)
• RFID inventory tracking
• Self-checkout kiosks

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