C code is composed utilizing a content tool. This can be notepad or an IDE like those supplied with the three compilers recorded previously. You compose a PC program as a progression of directions (called articulations) in a documentation that looks a bit like numerical recipes.

int c=0;

float b= c*3.4+10;

This is spared out in a content record and afterward aggregated and connected to create machine code which you then can run. Each application you use on a PC will have been composed and accumulated like this, and a large number of them will be written in C. Perused all the more about compilers and how they function. You can't typically get hold of the first source code unless it was open source.