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Computer programming

Computer programming (often shortened to programming or coding) is the process of designing, writing, testing, debugging, and maintaining the source code of computer programs. This source code is written in one or more programming language. The purpose of programming is to create a set of instructions that computers use to perform specific operations or to exhibit desired behaviors. The process of writing source code often requires expertise in many different subjects, including knowledge of the application ___domain, specialized algorithms, and formal logic.

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The Antikythera mechanism (/ˌæntɪkɪˈθɪərə/ ANT-i-ki-THEER-ə or /ˌæntɪˈkɪθərə/ ANT-i-KITH-ə-rə) is an ancient mechanical computer designed to calculate astronomical positions. It was recovered in 1900–1901 from the Antikythera wreck. Its significance and complexity were not understood until decades later. Its time of construction is now estimated between 150 and 100 BC. Technological artifacts of similar complexity and workmanship did not reappear until the 14th century, when mechanical astronomical clocks were built in Europe.

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Paul Gardner Allen (January 21, 1953 – October 15, 2018) was an American business magnate, investor, and philanthropist. Allen co-founded Microsoft with Bill Gates. In March 2018, Allen was estimated to be the 44th-wealthiest person in the world according to the Forbes annual list of the world's billionaires, with an estimated net worth of $21.7 billion, revised at the time of his death to $20.3 billion. He was the founder and chairman of Vulcan Inc., which managed his business and philanthropic efforts. Allen also had a multi-billion dollar investment portfolio which included technology companies such as Evri and Gist, real estate holdings, and stakes in other technology, media, and content companies. Allen also owned two professional sports teams, the Seattle Seahawks of the National Football League (NFL), and the Portland Trail Blazers of the National Basketball Association (NBA). He was also part-owner of the Seattle Sounders FC, which joined Major League Soccer (MLS) in 2009. Allen's memoir Idea Man: A Memoir by the Cofounder of Microsoft was released on April 19, 2011.

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Credit: Kleiner

The Hello world program (shown here in C++) is one of the simplest programs to create, often used to illustrate the basic syntax of a programming language and its development cycle.

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