There is two type datatype available Value and reference 
type . value are stored in stack and reference type used 
in  heap . when we copy data from stack memmory to heap it 
call Boxing . 


Int32 x = 10;         object o = x ;  // Implicit 
boxing               
 Int32 y = 10;      
   object obj = (object) y; // Explicit Boxing


Rahul Tripathi 
raultripathi@myway.com

Boxing: convert the value types to reference type
Unboxing: Convert the reference type to value type