Which retail innovation, invented in 1952 by Norman Joseph Woodland and Bernard Silver, was first used commercially in 1974 and revolutionized checkout and inventory tracking?

The retail landscape has been transformed by numerous inventions and discoveries throughout history. Some innovations were so impactful they fundamentally changed how consumers shop and interact with products. This trivia question focuses on a revolutionary retail technology that emerged in the mid-20th century and completely transformed inventory management and checkout processes worldwide. Test your knowledge of retail history and the inventions that shaped modern commerce!

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The UPC barcode scanning system
The electronic cash register (ECR)
The magnetic stripe card reader
The automated teller machine (ATM)