Which innovative point-of-sale system first allowed architects to design retail spaces without fixed checkout counters, enabling more fluid store layouts?

The intersection of architecture and retail has evolved dramatically over time, with innovative point-of-sale systems transforming how spaces are designed and utilized. From traditional cash registers to modern integrated systems, the technology behind retail transactions has influenced architectural decisions in significant ways. Test your knowledge about how POS technology has shaped retail architecture!

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IBM's 3660 Supermarket System (1973)
Apple's Mobile POS Solution (2009)
NCR's Class 5000 Terminals (1982)
Square Register (2013)