C#Pronounced "C-Sharp", this is Microsoft's statically-typed C language family member intended to be an "evolution of C and C++" which Microsoft says is "simple, modern, type safe, and object-oriented." C# is the main language for their .NET platform. C# is commonly compared to Java, but this is to be expected since both programming languages have a syntax intentionally designed to be easy to learn for experienced C developers.
Microsoft's page for the language: MSDN C# Reference and Language Specification
Open-source versions of the language: