Doubtlessly, Larry Wall, Linus Torvalds, John Carmack, tchrist, and just about everybody else started out writing Hello, World! it's like a rite of passage - you can hardly call yourself a programming "adult" without writing the sacred program. Just a small trip down memory lane...

perl -e 'print "Hello, World!\n"'

(display "Hello, World!") (newline)

#include <stdio.h>
int main(int argc,char *argv[]){ printf("Hello, World!\n");}

public class Hello{
public static void main(String args[]){
	System.out.println("Hello, World!");
}}