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

The retail landscape has been transformed by countless innovations aimed at improving customer experience and operational efficiency. One of the most significant developments in modern retail history has been self-checkout technology, which fundamentally changed how consumers interact with stores. This poll tests your knowledge about when this revolutionary retail innovation first appeared in stores and began changing shopping behaviors worldwide.

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1992 (Price Chopper supermarket in New York)
1984 (Kroger supermarket in Atlanta)
2001 (Walmart Supercenter in Arkansas)
1978 (Safeway store in California)