Answer:
Boxing and Unboxing both using for type converting but have some difference:
Boxing:
Boxing is the process of converting a value type data type to the object or to any interface data type which is implemented by this value type. When the CLR boxes a value means when CLR converting a value type to Object Type, it wraps the value inside a System.Object and stores it on the heap area in application domain.
Example:
Unboxing:
Unboxing is also a process which is use to extracts the value type from the object or any implemented interface type. Boxing may be done implicit but unboxing have to be explicit by code.
Example:
The concept of boxing and unboxing underlies the C# unified view of the type system in which a value of any type can be treated as an object.