Which famous invention was initially marketed with the slogan "A machine that thinks" in a 1924 advertising campaign that helped transform its public perception?

Some of history's most significant inventions and discoveries transformed society, but their journey from lab to marketplace wasn't always smooth. This trivia focuses on how certain groundbreaking products overcame initial market challenges through innovative advertising campaigns or clever brand positioning. Test your knowledge of how these world-changing innovations were first presented to consumers!

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IBM's first commercial computer
IBM's tabulating machines (precursors to computers)
Bell's telephone
Edison's phonograph