I just ran across this.

Funny stuff… here’s a snippet:

High School/Jr.High

10 PRINT "HELLO WORLD"  20 END

First year in College

program Hello(input, output)    begin      writeln('Hello World')    end.

Senior year in College

(defun hello    (print      (cons 'Hello (list 'World))))

New professional

#include   void main(void)  {    char *message[] = {"Hello ", "World"};    int i;

    for(i = 0; i < 2; ++i)      printf("%s", message[i]);    printf("n");  }

Check out the rest, here.