ahhhh!!! They used an example like that in the book "Code", i think I got it now! Thanks a ton!!! By the way, if anyone else is having problems with binary etc, may i suggest picking up the book, Code by Charles Petzoid. It starts out with explaining Morse code and then Brail, and then Binary. I new nothing of what binary was other than a bunch of 1's and 0's and now i understand how it works . It also covers Boolean Algebra!