Which company invented the first commercially successful mechanical cash register in 1879, revolutionizing retail point-of-sale systems?

The point-of-sale system is something we encounter almost daily, but do you know its historical origins? Before computerized systems and digital payments, retail transactions were handled quite differently. This trivia explores a pivotal moment in retail history that transformed how merchants processed sales and managed their businesses - an innovation that would lay the groundwork for modern checkout systems we use today.

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National Cash Register (NCR)
International Business Machines (IBM)
Western Electric Company
Burroughs Adding Machine Company