What is BCL?

  • BCL is a base class library of classes, interfaces and value types
  • It is the foundation of .NET framework applications, components, and controls
  • Encapsulates a huge number of common functions and make them easily available for the developers
  • It provides functionality like threading, input/output, security, diagnostics, resources, globalization, etc.
  • Also serves the purpose of interaction between user and runtime
  • It also provides namespaces that are used very frequently. for eg: system, system.Activities, etc.