Which company invented the first electronic point-of-sale terminal with real-time inventory tracking capabilities that became the foundation for modern POS systems?

The point of sale (POS) system has transformed retail operations over the decades. From mechanical cash registers to sophisticated digital platforms that track inventory, analyze customer behavior, and integrate with multiple payment methods - the evolution represents one of retail's most significant technological innovations. Test your knowledge about this revolutionary invention that changed how businesses process transactions forever.

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IBM (with their 3650 Retail Store System introduced in 1973)
NCR Corporation (with their 2552 Electronic Cash Register in 1974)
Fujitsu (with their FAME system developed in 1970)
Digital Equipment Corporation (with their PDP-8 retail adaptation in 1969)