Definition: An Include File is a Source Code file that is merged into another during compilation of C and C++.
It's a bit of an old fashioned technique as the merging is done by the preprocessor and one very large file is compiled. The files that are included are header files.
Glossary:
A B C D E F G H I J K L M N O P Q R S T U V W X Y ZExamples:
To output any text in a C program you need to include the <stdio.h> header file.

