In a recent issue of Scientific American, Ivars Peterson summed up the importance of online information systems to today's scientific and technical community - To stay current in a field, whether in mathematics, astronomy, or electrical engineering, you must have access to a computer network. Colleagues can read a paper report, whether in final or draft form, as soon as it's finished - sometimes even as it's being written. To an astonishing degree, computer networks have already supplanted the more traditional means of formally and informally exchanging scientific ideas and data.
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