Which supermarket chain was the first to implement self-checkout technology in its stores?

The food retail landscape has been transformed by technological innovations that change how we shop for groceries. One of the most significant developments was the introduction of self-checkout systems, which revolutionized the customer experience and store operations. This technology has since become ubiquitous in supermarkets worldwide, but do you know when and where this retail innovation first appeared in a grocery setting? Test your knowledge about this pivotal moment in food retail history!

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Kroger (1992)
Price Chopper (1987)
Albertsons (1995)
Piggly Wiggly (1986)