Windows Communication Foundation. C Sharp (programming language) C♯ is intended to be a simple, modern, general-purpose, object-oriented programming language.[6] Its development team is led by Anders Hejlsberg.
The most recent version is C♯ 5.0, which was released on August 15, 2012. The ECMA standard lists these design goals for C#:[6] Due to technical limitations of display (standard fonts, browsers, etc.) and the fact that the sharp symbol (U+266F ♯ music sharp sign (HTML: ♯)) is not present on the standard keyboard, the number sign (U+0023 # number sign (HTML: #)) was chosen to represent the sharp symbol in the written name of the programming language.[8] This convention is reflected in the ECMA-334 C# Language Specification.[6] However, when it is practical to do so (for example, in advertising or in box art[9]), Microsoft uses the intended musical symbol.
C# used to have a mascot called Andy (named after Anders Hejlsberg). It was retired on Jan 29, 2004.[25] Visual C# Developer Center.