In the .NET ecosystem, there are many runtimes. We have the .NET Framework, which is a full machine-wide framework installed on the Windows operating system and provides app models for Windows Presentation Foundation (WPF), Windows Forms, and ASP.NET. Then, we have .NET Core, which is targeted at cross-platform operating systems and devices and provides ASP.NET Core, Universal Windows Platform (UWP), and a Mono runtime that is targeted at Xamarin applications and developers who can use Mono runtime to develop applications on Xamarin and run on iOS, Android, and Windows OS.
The following diagram depicts how the .NET Standard Library provides an abstraction of .NET Framework, .NET Core, and Xamarin with the common ...
