What is the difference betwen C, C# and C++?

Answer 1

Short:
C ia a low level programming language that works for every device.
C++ is an extension for C with classes and more.
C# is developed for the .net framework.
it only Runs on OS with the .net framework installed.

Answer 2

To expand on XiLef 's answer, C++ (also called cpp) is based on C. Cpp offers more features such as object oriented programming and is higher level. C code is compatible with Cpp code but not always the other way around.