Which company invented the first commercially successful mechanical cash register in 1879, featuring the iconic 'ka-ching' sound and a bell that rang when the drawer opened?

Before digital payments and credit cards dominated retail, mechanical innovations transformed how stores processed transactions. The humble cash register revolutionized retail by preventing employee theft, creating accurate sales records, and speeding up transactions. This poll explores a pivotal moment in retail payment history that changed how businesses operated and set the foundation for modern point-of-sale systems we use today.

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National Cash Register (NCR)
International Business Machines (IBM)
Burroughs Adding Machine Company
American Arithmometer Company (later became Remington Rand)