We demonstrate and explore some of the most interesting, promising, and clever of these, as well as their integration into powerful multimodal systems. When users talk about computers, they usually describe the interfaces, because, for most users, the interface is the system.
Keyboards only work for people who know the Roman alphabet.
This is a gadget-intensive topic, and we present gadgets galore. Input devices that can tell systems where users are looking, the gestures they are making, the direction and content of their sounds and speech, and what and how they are touching. Display devices that image directly onto the retina, high-resolution miniature LCDs, spatial sound generators. Some of these innovative transducers operate not just non-invasively but invisibly. No one should ever have to see a computer.