When and where was the world's first self-checkout system invented and installed for commercial use?

The retail landscape has been transformed by numerous innovations over the decades, making shopping more efficient and convenient. One of the most significant retail innovations was the introduction of self-checkout systems, which fundamentally changed how customers complete their shopping experience. Test your knowledge about this pivotal retail technology that has become ubiquitous in modern stores worldwide.

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1992 by IBM at Price Chopper in New York
1987 by NCR Corporation at Kroger in Cincinnati
1998 by Fujitsu at Tesco in London
2001 by Microsoft and Walmart in Arkansas