What is C# and what is it used for in .NET programming?
C# is a modern, object-oriented programming language developed by Microsoft. It was first released in 2000 and since then has become one of the most popular programming languages. Like all .NET languages it uses the .NET Framework, and more recently .NET Core, which comprise a library of types and classes used by C# programmers for developing desktop applications, web applications, games, and mobile apps. C# code is fast and efficient, making it well-suited for building complex commercial applications.
With the advent of open source tools and runtimes, C# can be used to develop fast, scalable , cross platform, web and mobile applications.