We are some years off yet, but it will not be long until artificial intelligence will surpass the skills of human imagination and ingenuity. And then, who knows? Will they be friend or foe? They might well just get on with curing diseases and exploring the universe on our behalf. For budding sci-fi writers, though the choice is clear- and countless villains have been made out of rogue computer systems. Listed here is some of our favourites, ranked very scientifically, to give you the most evil AIs in books, video games, and film.
