IT:AD:NET:HowTo:Base Class Library (BCL)

Summary

Base Class Library (BCL) is literally that, the base. It contains basic, fundamental types like System.String and System.DateTime, XML, etc.

The Framework Class Library (FCL) is the wider library that contains the totality: ASP.NET, WinForms, ADO.NET and more.

As per here1)), Core's equivalent of IT:AD:NET:HowTo:Base Class Library (BCL) is Standard.

.NET.NET CoreBase Class Library (BCL)Framework Class Library (FCL).NET Standardsort ofequivalent

The Base Class Library (BCL) is the core set of classes that serve as the basic API of the Common Language Runtime. The classes in mscorlib.dll and some of the classes in System.dll and System.core.dll are considered to be a part of the BCL. It includes the classes in namespaces like System , System.Diagnostics , System.Globalization, System.Resources , System.Text , System.Runtime.Serialization and System.Data etc.

The Framework Class Library (FCL) is a superset of the BCL classes and refers to the entire class library that ships with .NET Framework. It includes an expanded set of libraries, including Windows Forms, ADO.NET, ASP.NET, Language Integrated Query, Windows Presentation Foundation, Windows Communication Foundation among others.


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