C# (pronounced "C-sharp") is a modern programming language developed by Microsoft as part of its .NET framework. It is designed for building a wide range of applications, from web and mobile apps to games and enterprise software. C# combines the power of C++ with the simplicity of languages like Java, making it accessible for both beginners and experienced developers. C# is an object-oriented language, which means it uses objects to represent data and methods to manipulate that data. This approach helps organize code and makes it easier to manage complex programs. With a strong community and extensive libraries, C# is a popular choice for developers worldwide.