In what year was the world's first self-checkout system installed in a retail store?

The retail landscape has been transformed by numerous technological innovations over the decades. Among these advancements, self-checkout systems have fundamentally changed how consumers interact with stores. This trivia question explores the origins of this now-ubiquitous retail technology that has impacted shopping behaviors, store layouts, and staffing models across the globe. Test your knowledge about when this revolutionary retail technology first appeared in stores!

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1992, at Price Chopper in New York
1985, at Walmart in Arkansas
2001, at Tesco in the United Kingdom
1978, at Kroger in Ohio