Resumen
While position sensors have been around for years, dating at least as far back as the University of Illinois at Urbana-Champaign's early "dataglove" prototype in the 1970s, they have largely failed to penetrate the consumer mainstream despite periodic waves of hype. Researchers are now starting to explore more provocative visions for sensor-based applications that stretch far beyond the relatively simple manipulation of images on a two-dimensional screen. Some developers find inspiration in science-fiction and fantasy films. For others, the inspiration comes from hard-won experience. Whatever the inspiration, researchers are gradually recognizing the potential of position sensors to help them overcome the limitations of traditional user interfaces. When sensors start to do more than just transmit sensory data to a traditional two-dimensional computer screen, the way people interact with computers will fundamentally shift, as physical objects become "smarter" about themselves and the world around them