Which company introduced the world's first commercially successful self-checkout system in 1992?

The retail landscape has been transformed by numerous technological innovations over the decades, but few have changed the customer experience as dramatically as self-checkout systems. These machines have revolutionized how we complete transactions, reducing wait times and changing staffing models across the retail sector. But do you know when and where this now-ubiquitous technology first appeared? Test your knowledge of retail innovation history!

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IBM with their 'FastLane' system
NCR with their 'CheckRobot' technology
Fujitsu with their 'U-Scan' terminals
Walmart's internally developed 'Scan & Go' prototype