Which innovation is widely considered the first true electronic point of sale (POS) system, introduced in the 1970s that fundamentally changed retail operations?

The way we process retail transactions has dramatically evolved over the centuries. From manual ledgers to sophisticated digital systems, point of sale technology has transformed how businesses track inventory, process payments, and understand customer behavior. This trivia question explores a pivotal moment in the history of retail technology that changed commerce forever. Test your knowledge about this revolutionary shift in how stores managed their sales transactions!

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IBM's 3660 Supermarket System, which used optical scanning of UPC barcodes and was first installed at Marsh Supermarket in 1974
NCR's Model 2150, which used mechanical punch cards for inventory tracking introduced in 1969
McDonald's first computerized cash register system developed by Singer Business Machines in 1978
Verifone's ZON Jr. electronic payment terminal introduced in 1982 for credit card processing