Which famous mathematician designed the first mechanical calculator specifically marketed to retail businesses in the 1940s, revolutionizing retail calculations?

Before smartphones and laptops revolutionized how we handle mathematical calculations, several pioneering devices paved the way for modern computing. These early calculating machines transformed mathematical problem-solving and became the foundation for today's retail point-of-sale systems, financial computing platforms, and data analytics tools used in consumer product companies. Test your knowledge about the innovative history of these mathematical retail tools!

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Howard Aiken with his Automatic Sequence Controlled Calculator
John Mauchly with his BINAC system
Wallace Eckert with his IBM retail computation devices
Max Newman with the Colossus retail calculator