Which retail innovation, first implemented in 1974 by Marsh Supermarket, revolutionized supply chain management and is considered one of the most significant advancements in retail operations history?

Test your knowledge about historical innovations that transformed retail operations and supply chains! Throughout history, certain technological and operational breakthroughs fundamentally changed how retail businesses functioned, creating ripple effects we still feel today. This question focuses on a pivotal development that revolutionized inventory management and operational efficiency in the 20th century.

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Universal Product Code (UPC) barcode scanning
Electronic cash registers with digital receipts
Inventory management software systems
Self-service shopping cart implementation