Charles Simonyi

Hungarian-American billionaire software architect (b. 1948)

Charles Simonyi (Hungarian: Simonyi Károly, pronounced [ˈʃimoɲi ˈkaːroj]; born September 10, 1948) is a Hungarian-American software architect, businessman, and space tourist. He led the development of Microsoft's first application software, including early versions of Microsoft Office, and later co-founded Intentional Software, a company focused on his concept of intentional programming. A former researcher at Xerox PARC, he helped pioneer graphical user interfaces and introduced object-oriented programming and Hungarian notation to Microsoft.

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