Some inventors and other theorists not only believe you could wear a computer; they believe there's no reason why you shouldn't. Assuming you remembered to wear it, a wearable computer is always available. Currently, several companies sell wearables and there is a considerable literature on the subject. Some wearable computers are basically desktop or notebook computers that have been scaled down for body-wear. Others employ brand new technology. Both general and special purposes are envisioned. A number of wearables have been designed for the disabled.