question about viruses

In message <01be5b3b$65657aa0$d3c962cf@devlaptop>, "Mike" writes: It's been a long time since I read the book (I really should read it again, now that the subject has come up). But if he're refering to the article I think, it's by Martin Gardner. Unfortunately, I can't find a full reference. (Somewhere I've got a photocopy of it, but I can't find it right now.) Anyway, I do find that it came from a 1962 issue. In the article, Gardner defines (I can't remember if he references anyone else) a simple game played with six pawns played on a 3x3 board. Using 24 matchboxes, he shows a learning machine called Hexapawn Educational Robot (HER). I've got a fond spot in my heart for this one of Gardner's articles. A simplified version was printed under the title "How to Play Hexapawn" in the collection called *The New Reader's Digest Treasury for Young Readers,* a copy of which was given to me by a relative when I was a kid. It sparked my interest in AI which reached it climax about seven years ago when I defended my dissertation in machine learning. Brian L. Stuart