People will communicate with computers via speech and gestures

Ray Kurzweil : writer, futurist
People will communicate with their computers via two-way speech and gestures instead of with keyboards. Furthermore, most of this interaction will occur through computerized assistants with different personalities that the user can select or customize. Dealing with computers thus will become more and more like dealing with a human being.

Kurzweil, Ray. 1999. The age of spiritual machines: when computers exceed human intelligence. New York: Viking.