.NET
.NET is a free, cross-platform, open-source developer platform for building many types of applications, including web, mobile, desktop, games, IoT, and cloud services. It provides a unified runtime and framework with libraries for common tasks, supporting multiple programming languages like C#, F#, and Visual Basic. The platform includes tools for development, debugging, and deployment across various operating systems.
Developers should learn .NET for building enterprise-grade, scalable applications on Windows, Linux, and macOS, especially in corporate environments or for cloud-native development with Azure. It's ideal for web APIs using ASP.NET Core, desktop apps with Windows Forms or WPF, and microservices architectures, offering strong performance, security features, and extensive tooling support in Visual Studio.