Which retail payment innovation was first introduced by IBM in 1973 and became the foundation for modern electronic point-of-sale systems?

The way we pay for retail purchases has evolved dramatically over the decades. From cash to cards to contactless and mobile payments, retail payment systems have transformed the shopping experience and economics of retail businesses. This trivia question focuses on a pivotal innovation that forever changed how consumers interact with merchants at checkout. Test your knowledge about this retail payment milestone that fundamentally altered business transactions worldwide.

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UPC Barcode Scanner
Credit Card Magnetic Stripe Reader
Electronic Cash Register (ECR)
PIN Pad for Debit Transactions