In what year was the world's first self-checkout system invented, revolutionizing retail technology and customer experience?

The retail landscape has been transformed by numerous technological innovations over the decades. One of the most impactful advancements that changed how customers interact with stores was the introduction of self-checkout technology. This invention significantly altered staffing models, store layouts, and the overall shopping experience. Test your knowledge about this retail technology milestone that bridged traditional shopping with the automated experiences we know today.

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1992, by Howard Schneider, creating the first patented self-checkout system called 'Service Robot'
1987, by IBM's retail division, introducing the 'ShopperScan' autonomous checkout terminal
1998, by NCR Corporation, launching the 'FastLane' self-service checkout system
2002, by Amazon's early retail technology team, developing the precursor to Amazon Go called 'QuickShop'