C# (C Sharp) is a modern and widely used programming language developed by Microsoft. C# is particularly popular for developing Windows applications and games. Here are some of the key features of C#:

1. **Type Safety**: C# is a type-safe programming language, which helps prevent type mismatches and reduces errors.

2. **Object-Oriented Programming (OOP)**: C# supports object-oriented programming, allowing you to organize your code using classes, objects, inheritance, interfaces, and other OOP concepts.

3. **Rich Standard Library**: C# comes with the .NET Framework and .NET Core, which provide a vast collection of libraries for various tasks.

4. **Platform Independence**: C# can work on various platforms, including non-Windows platforms, with the help of .NET Core.

5. **Feature-Rich Language**: C# includes many features commonly found in modern programming languages, such as delegates, lambda expressions, dynamic types, asynchronous programming, and more.

6. **Exception Handling**: C# offers advanced error handling and debugging features. You can handle exceptions using try-catch blocks.

7. **Graphical User Interface (GUI) Development**: C# allows you to develop Windows desktop applications using tools like Windows Forms and WPF. It is also commonly used for game development with Unity.

8. **Rapid Development**: C# features a clean syntax and modern capabilities, facilitating rapid development. Compile-time errors in C# help reduce development time.

9. **Security**: C# includes security measures, code verification, and limited access controls to enhance application security.

10. **Various Application Types**: C# can be used to develop various types of applications, including desktop applications, web applications, mobile applications, and games.

C# is supported by a large developer community and a vast ecosystem. These features make C# a popular choice for a wide range of application development scenarios.