Which retail payment innovation was first introduced by IBM in 1973 that revolutionized checkout systems worldwide?

The way we pay for goods has transformed dramatically over the decades. From cash registers to contactless payments, retail payment systems reflect technological innovation and changing consumer behaviors. This trivia question examines a pivotal moment in retail payment history that revolutionized how businesses process transactions. Test your knowledge about the development that forever changed the retail landscape and set the foundation for today's diverse payment ecosystem.

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Universal Product Code (UPC) barcode scanning
PIN-based debit card transactions
Electronic signature capture pads
Near Field Communication (NFC) payment terminals