In what year and at which grocery chain was the world's first fully functioning self-checkout system implemented for commercial use?

The retail landscape has been transformed by technological innovations that enhance customer experience and operational efficiency. One of the most impactful developments in modern retail has been the self-checkout system. This seemingly simple technology has dramatically changed how we shop, reducing wait times and giving customers more control over their shopping experience. But do you know when and where this revolutionary retail technology first appeared?

This is a live public trivia poll on AIPolls.Net. Vote and see real-time results.

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