Which retail giant pioneered the first commercial use of barcode scanning at point-of-sale in 1974, fundamentally changing retail checkout and inventory management?

Point-of-sale (POS) systems have transformed how retailers manage transactions and inventory. From the humble mechanical cash register to today's cloud-based solutions, these systems represent a fascinating intersection of retail operations, technology, and business efficiency. This trivia question explores a pivotal moment in POS history that changed retail forever and set the foundation for modern retail technology.

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Marsh Supermarket (Ohio)
Walmart (Arkansas)
Sears Roebuck & Co. (Illinois)
Kroger (Cincinnati)