Which payment innovation was first introduced by IBM in 1973, fundamentally changing retail transactions before widespread credit card adoption?

The retail payment landscape has transformed dramatically over the decades, with revolutionary technologies changing how consumers interact with businesses. From simple cash registers to contactless payments and cryptocurrency, payment innovations have shaped commerce in profound ways. Test your knowledge about the breakthrough technologies and visionaries behind modern retail payment systems that we now take for granted in our daily shopping experiences.

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Universal Product Code (UPC) barcode scanning system
Electronic Funds Transfer at Point of Sale (EFTPOS)
Near Field Communication (NFC) payment technology
Magnetic stripe card readers