Which product innovation, first used in a supermarket in 1974, fundamentally transformed retail supply chain management and is considered the grandfather of modern e-commerce tracking systems?

The retail landscape has been revolutionized by numerous technological innovations that have changed how we shop. Behind these transformative technologies are fascinating stories of invention, discovery, and development. This trivia question focuses on a pivotal moment in product innovation history that set the foundation for modern e-commerce and retail technology. Test your knowledge about the origins of a technology we now take for granted!

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The Universal Product Code (UPC) barcode
The electronic point-of-sale (EPOS) system
The magnetic stripe card reader
The electronic anti-theft tag