This document discusses the structure and execution of C programs. It explains that a C program contains sections for documentation, definitions, global declarations, and the main function which contains the program logic and calls to subprograms. It provides an example of a simple C program that prints "Hello" and describes some basic rules for C programming, such as programs starting with main(), using semicolons, and case sensitivity. It also outlines the compilation process where the C code is preprocessed, compiled, assembled, and linked to produce an executable program stored in memory.

1. C Programming
Program structure, Compilation and Execution of a Program.

2. Structure of a C program
Documentation Section
Link Section
Definition Section
Global Declarations Section
Main function
Subprograms

3. Example
//Practical 1
#include<stdio.h>
void main()
{
printf(“Hello”);
}
Documentation Section
Link Section
Main function
Statements

4. Rules in C Programming
 Execution of every C program starts with the main() function.
 Each C program contains only one main() function.
 Every statement in C program ends with semicolon(;).
 C is a case sensitive language. Most of the statement in C program
are in lowercase except some symbolic names and outputs.
 Each opening brace should have its closing brace. Braces are used
to define the block in coding.
 C can contain comments anywhere in the program.
 The execution of program starts with the opening brace of main()
function and ends with the closing brace of the main() function.

5. Compilation and Execution of a Program.
C code
Linker
Compiler
Primary
Memory RAM
Preprocessing
Assembler
Loader
Libraries

6. THANK YOU