C# is a versatile, object-oriented programming language developed by Microsoft. It combines the power of C++ with the simplicity of Visual Basic, making it suitable for various applications, including desktop, web, mobile, and game development. C# is part of the .NET framework, providing a rich set of libraries and tools for rapid application development. Its syntax is similar to Java, featuring strong typing, garbage collection, and extensive support for modern programming paradigms like asynchronous programming and LINQ. C# is widely used in enterprise software, particularly for building Windows applications, and it’s also gaining traction in cross-platform development with frameworks like Xamarin and .NET Core.