When was the first self-checkout system invented and in which store was it first implemented?

The retail landscape has been transformed by technological innovations that enhance customer experience while streamlining operations. One such revolutionary invention changed how we complete our shopping trips forever, eliminating a pain point that had existed since the first modern supermarkets. Test your knowledge about this significant retail technology milestone that has now become ubiquitous in stores worldwide.

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1992 by Price Chopper in New York
1986 by Kroger in Cincinnati
1992 by David R. Humble at Checker Supermarket in South Florida
1998 by Walmart in Arkansas