Which groundbreaking retail technology invention was first introduced at a Marsh Supermarket in Troy, Ohio in 1974, fundamentally changing how products were tracked and sold?

The world of retail has been transformed by numerous technological innovations throughout history. From simple beginnings to complex systems, these inventions have revolutionized how we shop and how businesses operate. This trivia question focuses on a pivotal technological development that fundamentally changed retail operations worldwide and set the stage for today's seamless shopping experiences. Test your knowledge of retail technology history!

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• The Universal Product Code (UPC) barcode scanner
• The electronic cash register (ECR) with digital display
• The first RFID inventory tracking system
• The magnetic strip credit card reader

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