The intelligent house has many innovations. A computer controls the heating and the lighting. If you're at work and the computer decides the house isn't warm enough, it switches on the heating. It can prepare coffee for you as you're watching your favorite TV programme. Cameras, which are in every bedroom, keep and eye on the children upstairs when you are in the garden or even at the office. The house even knows what is in your fridge and can make a shopping list for you.