C++ is a technical language which is case-sensitive (it allows only small case letters in it's format), and is said to be closest to the real world because of it's object oriented approach. It uses it's standard library files called Header files which consist of functions required to run and execute a code properly. C++ uses various types of data types like int for integers, float for decimal numbers and char for character type data. There are three kinds of operator categories supported by C++. These are: 1) Arithmetic operators like +,-,*,/,= etc. 2) Relational operators like >,<,>=,<=,==,!= etc. and 3) Logical opeartors like OR (||), AND (&&) and NOT (!)