Which retail technology innovation, introduced in 1974, fundamentally transformed checkout processes and inventory management by using a standardized machine-readable format?

Before today's digital shopping landscape, retail underwent transformative innovations that forever changed how we shop. This poll explores a pivotal retail technology from history that revolutionized the consumer experience and laid the groundwork for modern commerce systems. Test your knowledge of retail history and the technological advancements that shaped today's shopping experience!

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Universal Product Code (UPC) barcode scanning
Electronic point-of-sale (EPOS) terminals
Magnetic stripe card readers
Electronic anti-theft security tags