(1) Class Loader
(2) JIT (Just In Time) Compiler (compile IL code into machine code)
(3) Garbage Collector
(4) Execution Engine

• Components in CLR
  The above functionalities achieved by all these componets .Each component is responsible for specific functionality.
  
  1.Class Loader: It is used to load all the classes at runtime
  
  2.MSIL to native Compiler: It is a JIT (Just In Time) compiler it will convert MSIL code to native code
  
  3.Code manager: It manages the cade during runtime
  
  4.Garbage Collector: It manages memory .It collects all the unused objects in the memory and deallocate them when the memory is less.
  
  5.Security Engine: It has all the security restrictions.
  
  6.Type checker: It enforces strict type checking.
  
  7.Thread support: It provides multithreading support to our application.
  
  8.Exception manager: It provides mechanisum to handle execptions at runtime.
  
  9.Debug Engine: Which allows you to debug applications.
  
  10.Com Marshaler: Which allows interoperability to our applications
  
  11.Base class library support: Which provides all types that application need at runtime