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決勝六級(jí)--簡(jiǎn)答（3）
When Gutenberg printed his first books he had no intention that they should be portable. They were made, after all, to compete with very weighty （and often chained）illuminated manus. The idea that you could walk around with a book did not come until l500 when Aldus Manutius stumbled upon this revolutionary?and liberating?notion. The first paper?light newspaper(Johann Caroluss The Relation in Strasbourg）did not follow until l609. In the computer world the same revolution?from heavy main frame to near weightlessness?is well under way. ?Today s portables seem miracles of design and power. But, even as far as they have come, compare them with the ultra?light, ultra?cheap, ultra high quality information?bearing attributes of paper, the only problem is that the information on paper cannot be updated. Imagine a piece of electronic paper which could typeset itself by means of remotely fed data. The key elements of such an entity are already a reality at the Massachusetts Instltute of Technologys（MIT） Media Laboratory, enabling the prospect of portable information devices which are essentially weightless and omnipresent. The key breakthrough, which will start to be seen widely in l998, is a new type of ink： electronic ink. This magical stuff can be coated on to any surface, but, unlike normal ink, it can be electronically set. It is instantly changeable, erasable and resettable. The ink itself, a polymer material, is not expensive and requires no electronic power to maintain its image. ? This spells the beginning of the end of the published book. The conventional publishing industry is already dying. Books, magazines and newspapers have reached a plateau of sales in America of about＄100 billion a year. Sales of fiat?panel displays, the basis of all notebook computers and the super?thin screens which are beginning to populate our desktops, are growing rapidly with sales approaching ＄30 billion, but such screens are still heavy, very expensive and po
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