In what year was the world's first self-checkout system invented, forever changing retail logistics and customer experience?

The retail landscape has been transformed by countless innovations aimed at improving customer experience and operational efficiency. Among these, self-checkout technology represents a significant shift in how consumers interact with stores. This invention eliminated the need for cashier-mediated transactions for every purchase, giving shoppers more control and potentially reducing wait times. Test your knowledge about the origins of this now-ubiquitous retail technology!

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1992, invented by Dr. Howard Graham at NCR Corporation
1986, created by IBM's retail solutions division
1998, developed by Fujitsu in partnership with Walmart
2001, pioneered by Amazon as an early prototype for their Amazon Go concept