Which invention, patented in 1952, fundamentally changed retail inventory management and is considered the precursor to modern retail data analytics systems?

Throughout history, technological innovations have transformed how retailers track and manage their inventory. These breakthroughs have not only improved operational efficiency but dramatically enhanced customer experience by ensuring product availability. This poll tests your knowledge about a pivotal invention that revolutionized retail inventory management and created the foundation for today's sophisticated retail data analytics systems.

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• The barcode (UPC), invented by Norman Joseph Woodland and Bernard Silver
• The electronic cash register (ECR), invented by Charles F. Kettering
• The magnetic stripe card, invented by IBM engineer Forrest Parry
• The electronic price tag system, invented by Thomas Watson Jr.

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