In which year and at what store was the world's first self-checkout system installed for commercial use?

Self-checkout technology dramatically changed the retail landscape, offering customers new ways to complete transactions while retailers could reallocate staff resources. But do you know when and where this revolutionary retail technology first appeared? Test your knowledge of retail innovation history with this question about the origins of a technology we now take for granted.

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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 Carrefour in France