C++ is an object oriented programming language.  It was developed by Bjarne Stroustrup at AT&T Bell Laboratories 1980.  Initial name of C++ is ‘C with Classes’.

C++ is a superset of C.  So, almost all C programs run under C++ Compiler with few or no modifications.  Important additional features we can see in C++ are Encapsulation, Abstraction, Polymorphism,Inheritance which are the features of every object oriented programming.  C++ program can be saved with extension .cpp