Which retail innovation, first used commercially in 1974 at an Ohio supermarket, used a series of parallel lines to encode product information that could be scanned by a laser?

Test your knowledge about a revolutionary technology that transformed the retail industry forever! This invention fundamentally changed how products are identified and tracked, enabling faster checkouts, improved inventory management, and laying the groundwork for modern e-commerce systems. Even today, this technology continues to evolve and remains essential to retail operations worldwide.

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Universal Product Code (UPC) barcode
Radio-frequency identification (RFID) tag
Electronic shelf label (ESL)
Point-of-sale (POS) touchscreen