-Inheritance allows us to define a class that inherits all the methods and properties from another class.
it is the class being inherited from, also called base class.
Child class is the class that inherits from another class, also called derived class.
-In this program, we create a two class named as 'Computer()' and Machine(), where Machine(Computer) shows that Machine class inherits the property of the Computer class.
-Parent class is 'Computer()'
-Child class is 'Machine()'
-Here we create an object of the child class i.e Machine() which are also able to call the member function of the parent class i.e. Computer()
-So by c.name() and c.work() we are able to call both data functions of parent and child class.