Header files in c language

Answer 1

you have many functions in c language like printf, scanf, getch, there a lot more. If all these functions were un grouped it would be difficult for the programmer to manage the code, so make the task easier the functions are divided into groups which are known as header files in c language, i.e all the input output (I/O) related functions can be found in stdio.h whereas maths functions can be found in math.h etc.

you can learn more about header files here:

http://thetechnofreaks.com/2011/08/23/the-basics-welcome-to-the-world-of-programming/

Answer 2

Are very important. If you have a question about them, then ask away.