Which retail giant pioneered the first commercial use of barcode scanning technology at point of sale in 1974, marking a revolutionary change in retail checkout systems?

Point of sale (POS) systems have revolutionized how retailers process transactions and manage inventory. From manual cash registers to sophisticated cloud-based systems, POS technology has dramatically transformed the retail landscape. This trivia question tests your knowledge about a pivotal moment in retail technology history that changed how businesses operate forever. Do you know when this fundamental shift occurred?

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Marsh Supermarket (using IBM's UPC system)
Walmart (using their proprietary SMART system)
Sears (using NCR's retail scanning technology)
Kroger (using Datalogic's early scanner prototype)