The capture, manipulation, transmission, consumption of information in digital form has become a critical function in our economy--soon, perhaps, in our civilization. For years, the striking increase of digital computing networking has been rewriting the rules in business, it will continue to do so. Now, as these technologies develop rapidly, the Information Revolution promises to touch--in some cases radically transform—every aspect of life: our work leisure, all manner of scientific techniques, virtually every method for recording transmitting knowledge, including books, newspapers, magazines, movies, television, phone calls, musical recordings, architectural drawings.