Which company first introduced and patented the self-checkout system technology that became widely adopted in retail stores?

Retail technology has transformed how we shop over decades. From cash registers to contactless payments, innovations have streamlined the shopping experience while reshaping customer-retailer interactions. One pivotal development was the introduction of self-checkout systems, which dramatically changed store operations and customer flow. Test your knowledge about this significant retail technology advancement that paved the way for today's autonomous shopping experiences.

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IBM with its 'FastLane' system (1998)
NCR Corporation with its 'Self-Checkout' system (1992)
Amazon with its 'Express Checkout' prototype (1995)
Fujitsu with its 'U-Scan' technology (1990)