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The Computer for the 21st Century (课件).pdf

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The Computer for the 21st Century Mark Weiser Scientific American, September 1991 Introduction “The most profound technologies are those that disappear. They weave themselves into the fabric of everyday life until they are indistinguishable from it.” 2 2 Introduction Mark Weiser often referred to as the father of ubiquitous computing Coined the term in 1988 3 3 First Information Technology Writing as an example, Ability to represent spoken language Long term storage of information Ubiquitous in industrialized nations Where is it? Books, magazines, street signs, billboards, candy wrappers Constant background presence of this “literary technology” does not require active attention Information to be transmitted is ready at a glance 4 4 Computers Today (1998) “Approachable only through complex jargon that has nothing to do with the task for which people use computers … analogous to the period when scribes had to know as much about making ink or baking clay as they did about writing” 5