Virtual Keyboards

VIRTUAL KEYBOARDS : : : a little info ---- > comments welcome

That can be projected and touched on any surface. The keyboard watches your fingers move and translates that action into keystrokes in the device. Most systems can also function as a virtual mouse.

In addition to small devices projection keyboards could be used to create a control-panel projection that offers virtual knobs and switches for use in hazardous environments, as well as in medical markets where sterile data entry is a concern.

These are used for PDAs and other hand helds.