c preprocessor

C preprocessor is a program that takes the code you write in the C programming language and makes it simpler for the computer to understand and use. The C preprocessor looks for specific commands or parts of your code and replaces them with simpler instructions for the computer so it can understand and execute the program properly. For example, if you wrote a program that had a lot of numbers in it, the preprocessor would replace each of those numbers with a simpler instruction so the computer could understand what it needed to do.