C is a general-purpose computer programming language developed in 1972 by Dennis Ritchie at the Bell Telephone Laboratories for use with the Unix operating system.
Although C was designed for implementing system software, it is also widely used for developing portable application software.
C is one of the most popular programming languages of all time and there are very few computer architectures for which a C compiler does not exist. C has greatly influenced many other popular programming languages, most notably C++, which began as an extension to C.
Wikimedia Foundation, Inc. is an American non-profit charitable organization headquartered in San Francisco, California, United States. It is organized under the laws of the state of Florida, where it was initially based. It operates several online collaborative wiki projects including Wikipedia, Wiktionary, Wikiquote, Wikibooks, Wikisource, Wikimedia Commons, Wikispecies, Wikinews, Wikiversity, Wikimedia Incubator, Meta-Wiki and owns the now-defunct Nupedia. Its flagship project, Wikipedia, ranks in the top-ten most-visited websites worldwide. The creation of the foundation was officially announced on June 20, 2003, by Wikipedia co-founder Jimmy Wales, who had been operating Wikipedia under the aegis of his company Bomis.
The Wikimedia Foundation falls under section 501(c) of the US Internal Revenue Code as a public charity. Its National Taxonomy of Exempt Entities (NTEE) code is C60 (Adult, Continuing Education). The foundation's by-laws declare a statement of purpose of collecting and developing educational content and to disseminate it effectively and globally. The Wikimedia Foundation's stated goal is to develop and maintain open content, wiki-based projects and to provide the full contents of those projects to the public free of charge. This is possible thanks to its Terms of Use (updated and approved on June 2009, to adopt CC-BY-SA license).