#include <stdio.h> This is a preprocessor command that includes standard input output header file(stdio.h) from the C library before compiling a C program
int main() This is the main function from where execution of any C program begins.
{ This indicates the beginning of the main function.
/*_some_comments_*/ whatever is given inside the command “/* */” in any C program, won’t be considered for compilation and execution.
printf(“Hello_World! “); printf command prints the output onto the screen.
getch(); This command waits for any character input from keyboard.
return 0;
This command terminates C program (main function) and returns 0.
}
This indicates the end of the main function.
