What is boolean data type

In computer science  the boolean data type  is the data type that has one of the two possible values

usually denoted true or false.

Example:-  

                      if(3!=2)

                         printf("Rajnish");

in this example the expression (3!=2) is false So it is boolean .

As in python if we check the type of this expression :-

                                                                                            >>>type(3!=2)

                                                Then the output of this is   >>> <class 'bool'>

Examples:-  1) 3>2
                     2) 3==2 etc.
So an expression which has output true or false are comes under boolean data type.