Which groundbreaking payment system invention, patented in 1974, revolutionized retail by allowing electronic authorization of credit card transactions and is considered the predecessor to modern payment terminals?

The way we pay for products has transformed dramatically over the decades. From cash registers to contactless payments, retail payment systems have been at the forefront of technological innovation. This trivia question explores a pivotal invention that revolutionized how businesses process transactions, changing the retail landscape forever and setting the foundation for modern payment technologies we use today.

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• The Electronic Funds Transfer Point-of-Sale (EFTPOS) system by IBM
• The magnetic stripe card reader by Ron Klein
• The Electronic Cash Register (ECR) by NCR Corporation
• The Programmable Terminal System (PTS) by IBM consultant Stanley Brobeck

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