Which scientific advancement first enabled the creation of modern computerized point-of-sale (POS) systems in retail?

Modern retail wouldn't be what it is today without technological innovation in point of sale systems. These systems have revolutionized how retailers track inventory, process transactions, and gather customer data. But do you know when this scientific approach to retail management truly began? Test your knowledge about the intersection of science, technology, and retail history with this challenging question about the origins of computerized POS systems.

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• The invention of UPC barcodes at IBM, allowing optical scanning of products
• The development of electronic cash registers by NCR with digital displays
• The creation of magnetic stripe card readers for payment processing
• The introduction of touchscreen interfaces following resistive screen technology

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