Background and career
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. Simonyi flew to space twice as a private citizen, becoming the fifth space tourist and the only one to pay for two separate trips to the International Space Station. As of January 2025, his net worth was estimated at US$7.5 billion.
Simonyi was born in Budapest, Hungary. His father, Károly Simonyi, was a Kossuth Prize-winning professor of electrical engineering at the Technical University of Budapest, and created the first Hungarian nuclear particle accelerator. While in secondary school he worked part-time as a night watchman at a computer laboratory in the early 1960s, overseeing a large Soviet Ural II mainframe. He took an interest in computing and learned to program from one of the laboratory's engineers. By the time he left school, he had learned to develop compilers and sold one of these to a government department. He presented a demonstration of his compiler to the members of a Danish computer trade delegation. In 2006 he said that when he was young his dream was, "to get out of Hungary, go to the West and be free."
Simonyi's early career and interests are described in the book Programmers at Work, a collection of interviews published by Microsoft Press. At the age of 17, Simonyi left Hungary on a short-term visa but did not return. He was hired by Denmark's A/S Regnecentralen in 1966 where he worked with Per Brinch Hansen and Peter Kraft on the RC 4000 minicomputer's Real-time Control System, and with Peter Naur on the GIER ALGOL compiler. He subsequently moved from Denmark to the United States in 1968 to attend the University of California, Berkeley, where he earned his BS in Engineering Mathematics & Statistics in 1972 under Butler Lampson. He has honorary doctorate degrees from the Juilliard School in New York and from the University of Pécs in Hungary. Simonyi was recruited to Xerox PARC by Butler Lampson during its most productive period, working alongside Lampson, Alan Kay and Robert Metcalfe on the development of the Xerox Alto, one of the first personal computers. He and Lampson developed Bravo, the first WYSIWYG document preparation program, which became operational in 1974. During this time he received his PhD in computer science from Stanford University in 1977 with a dissertation on a software project management technique he called meta-programming. This approach sought to defeat Brooks' law by scaling programming through a formalization of communication among programmers. In the 1992 book Accidental Empires (ISBN 0-88730-855-4), Robert X. Cringely gave this description:
Simonyi's dissertation was an attempt to describe a more efficient method of organizing programmers to write software... the metaprogrammer was the designer, decision maker, and communication controller in a software development group.... individual programmers were allowed to make no design decisions about the project. All they did was write the code as described by the metaprogrammer.... A programmer with a problem or a question would take it to the metaprogrammer, who could come up with an answer or transfer the question to another programmer... Simonyi remained at PARC until 1981. In 1997, Simonyi was elected a member of the National Academy of Engineering for developing widely used desktop productivity software. He also became a member of the American Academy of Arts and Sciences in 2008. Since 1998 Simonyi has served as member of the Board of Trustees of the Institute for Advanced Study in Princeton and was its Chairman in 2008. Simonyi received the Golden Plate Award of the American Academy of Achievement in 2000.
In 1981, at Metcalfe's suggestion, he visited Bill Gates at Microsoft who suggested Simonyi start an applications group at Microsoft with the first application being a WYSIWYG word processor. At Microsoft, Simonyi built the organization and applications of what became its most profitable products, Word and Excel, as well as Excel's predecessor Multiplan. For the applications, Simonyi pursued a strategy called the "revenue bomb", whereby the product ran on a virtual machine that was ported to each platform. The resulting applications were highly portable, although Microsoft's focus and IBM's standardization on MS-DOS eventually made portability less important. In a 2002 news item, The Age noted that Simonyi introduced the concept of metaprogramming at Microsoft, turning it into what people sometimes referred to as a software factory, but the metaprogramming concept "did not work out in practice." Simonyi introduced to Microsoft the techniques of object-oriented programming that he had learned at Xerox. He developed the Hungarian notation convention for naming variables. These standards were originally part of his doctoral thesis. The Hungarian notation has been widely used inside Microsoft.
Simonyi remained at Microsoft during its rapid rise in the software industry, becoming one of its highest-ranking developers. He left Microsoft in 2002 to co-found, with business partner Gregor Kiczales, a company called Intentional Software. This company markets the intentional programming concepts Simonyi developed at Microsoft Research. In this approach to software, a programmer first builds a language environment specific to a given problem domain (such as life insurance). Domain experts, aided by the programmer, then describe the program's intended behavior in a What You See Is What You Get (WYSIWYG)-like manner. An automated system uses the program description and the language to generate the final program. Successive changes are only done at the WYSIWYG level. In 2004, Simonyi received the Wharton Infosys Business Transformation Award for the industry-wide impact of his innovative work in information technology. On April 18, 2017, Intentional Software was acquired by Microsoft.
