Which revolutionary retail innovation, first used commercially in 1974 on a pack of Wrigley's gum, fundamentally transformed inventory management and checkout processes worldwide?

Test your knowledge about one of the most transformative technological innovations in retail history that changed how customers interact with products. This invention revolutionized inventory management and checkout processes worldwide, becoming an essential component of modern retail operations. While we take it for granted today, this discovery represented a remarkable fusion of optical technology and data processing that fundamentally altered the retail landscape.

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