Which revolutionary retail technology, introduced in 1974 by IBM, first allowed supermarkets to automatically scan product information without manual price entry?

The history of retail payment systems reflects the evolution of consumer commerce itself. From manual cash registers to sophisticated digital platforms, payment technologies have dramatically shaped how merchants operate and how customers experience shopping. This trivia question explores a pivotal moment in retail payment history that fundamentally changed the industry landscape and set the stage for modern point-of-sale systems.

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Universal Product Code (UPC) barcode scanning
Electronic funds transfer at point of sale (EFTPOS)
Magnetic stripe card readers
Digital cash registers with price lookup capability