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

Retail technology has transformed how we shop over the decades. One innovation that dramatically changed the customer experience was the introduction of self-checkout systems. These systems reduced wait times, offered customers more control, and allowed retailers to reallocate staff resources. However, the road to widespread adoption wasn't smooth, with concerns about job losses, customer experience, and theft. Test your knowledge about this retail technology milestone that has become ubiquitous in modern stores.

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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