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单词 Internet
释义
Internet

Physics
  • The global network that links most of the world’s computer networks. It does not offer services to users but serves primarily to interconnect other networks on which services are located. These include basic services for electronic mail, the transfer of computer files, and remote log-in, and high-level services including the World Wide Web. The Internet is informal, with a minimal level of administration by governing bodies. The advent of the Internet has greatly speeded up the communication of scientific results and may revolutionize the teaching of scientific subjects.


Computer
  • The global informal network that now links a very substantial fraction of the world’s computer networks. The Internet is an extraordinary development that stems from the original ARPANET, which was initiated in North America in 1969. In broad terms the Internet does not offer services to end-users, but serves primarily to interconnect other networks on which end-user services are located. It provides basic services for file transfer, email, and remote login, and high-level services including the World Wide Web and the MBONE.

    The Internet is global, with connections to nearly every country in the world. It is deliberately nonpolitical and tends to deal with nongovernmental levels within a country. The structure is informal, with a minimal level of governing bodies and with an emphasis in these bodies on technical rather than on administration or revenue generation. Up to the mid-1990s the major users of the Internet were the academic and research communities, but thereafter, with a growth in home computing, there has been a massive increase in the number of individuals and companies using the World Wide Web and email. There has also been a large increase in interest in the commercial exploitation of the Internet. See e-commerce.


Internet
  • A network which consists of a number of other networks connected together using the TCP-IP set of protocols. A major part of the Internet is the World Wide Web—a collection of documents interlinked by means of hyperlinks.


Electronics and Electrical Engineering
  • The worldwide matrix of interconnecting computers running the TCP/IP protocol, the successor of the original Arpanet.


World History
  • A worldwide computer network. Technically, the Internet is an inter-network: a network that links many smaller networks into a uniform whole. The origins of the Internet are usually traced to ARPANET, the first multi-site network, which was established in 1969 under the auspices of the US Department of Defense to allow universities and other government-sponsored research institutions to exchange information. The Internet grew steadily and was genuinely global by the late 1980s, but was still largely restricted to specialist use. This changed in the 1990s because of two factors. First, in 1989 the Worldwide Web was introduced, which provided a simple technology for sharing information over the Internet in a user-friendly way. Second, the spread of personal computers (see information revolution) vastly increased the number of people with potential access to such information. Business became aware of the possibilities of the Internet and drove its rapid expansion from the mid-1990s. Progress was not always smooth (see dotcom bubble), but within ten years the Internet had transformed many aspects of life throughout the world. It is now assumed that an organization of any significance will have its own website, on which information about its activities can be found and products or services purchased; global email, social media, and other Internet-based communication technologies have revolutionized the way people and companies communicate; and a generation has grown up for which life without the Internet and its facilities would be inconceivable.


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