Which retail payment innovation, first introduced in 1950, revolutionized shopping by allowing consumers to make purchases without carrying cash?

Long before contactless payments and digital wallets, retail payment systems underwent revolutionary changes that shaped modern commerce. This trivia question explores a pivotal moment in retail payment history that transformed how consumers interact with merchants. Test your knowledge about the technological breakthrough that laid the foundation for today's retail payment landscape.

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Diners Club Card - the world's first universal credit card that could be used at multiple establishments
IBM's Electronic Cash Register - the first computerized point-of-sale system
Western Union's 'Money Transfer' service - the first electronic payment network for retailers
The Federal Reserve's Automated Clearing House (ACH) - the first electronic funds transfer system