In which year and at which retailer was the world's first self-checkout system implemented for commercial use?

Self-checkout technology revolutionized the retail experience by allowing customers to scan, bag, and pay for items without cashier assistance. This innovation has impacted store layouts, staffing models, and customer experiences across the retail landscape. But do you know when and where this now-ubiquitous retail technology first appeared? Test your knowledge of this significant retail innovation milestone that transformed how we shop.

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1992 at Price Chopper in New York
1987 at Walmart in Arkansas
1998 at Tesco in the United Kingdom
2001 at Target in California