Digitizing a natural interface

摘要

The stylus is one of the most universally understood tools for drawing and pointing. As an intuitive extension of our fingers, it is one of the first tools a child ever plays with―as a crayon, a pencil, chalk, or even a stick to draw in the mud. We quickly learn the mechanics of using a stylus through years of repetitive use and refine our skill with it throughout childhood. The average child will wear down about 730 crayons by his 10th birthday, according to Crayola. With all this natural experience using styluslike tools, why do most desktop computers come with a mouse instead?