Which mathematician's algorithms were instrumental in the development of the first commercially successful electronic point-of-sale systems in the 1970s?

The intersection of mathematics and retail technology has revolutionized how businesses operate. Early point-of-sale systems relied on mathematical algorithms that have evolved dramatically over decades. This trivia question explores a pivotal moment in the history of retail mathematics that changed how calculations were performed at checkout counters worldwide. Test your knowledge about the mathematical foundations that power modern retail transactions!

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John von Neumann, whose binary matrix calculations formed the basis for inventory tracking algorithms
Grace Hopper, whose compiler designs enabled the first COBOL-based retail transaction systems
Alan Turing, whose computational models were adapted for barcode scanning technology
Claude Shannon, whose information theory principles were used in early digital cash registers