C++ is a language created by Bjarne Stroustrup and it is a genreal-purpose, object-oriented programming language. C++ and C are very similar to the point where you can compile the majority of C++ programs in C, thus, if you are able to master C++ you will have the most of the basics of C accomplished. There are multiple uses of C++, its used in operating systems, browsers, libraries,graphics,banking applications and cloud storage systems.
Warning: C++ is one of the hardest languages to learn, we recommend either mastering or being comfortable coding in python to proceed
C++ Resources:
C++ Lessons
Importance of C++
C++ Book