I think eventually all classes will go computerised. We're issued with 'smart cards' and the card first goes into a reader attached to a laptop, and it brings up the person's details and how much they owe for the class, and you click 'paid' and then the card goes into a little hand held reader/computer thing which is linked to the scales. Your weight goes to the reader, and it says how much you've lost (or gained) and if you've won the next award (like your stone or 1.5 stone, etc). The consultant then talks to everyone around the room based on the info in that little hand-held computer. It's really good.