ocr: - preprocessor is buit into the C compiler. When the command to compile a program is given, the code is first preprocessed, and then compiled. Lines that begin with a# commmunicate with the preprocessor. This Hinclude" line causes the preproce550F to include a copy ofheader file "stdio.h" at this point in the code. This header file is provided by the Csystem. Wehave included this file because it contains information about the "printf) function.
