求翻译：Internet is a worldwide network of networks that all use the TCP/IP communication protocol and share a common address space. At the very beginning, it was incarnated as the ARPANET (Advanced Research Projects Agency Network), i.e. the precursor to the Internet. It was developed in the late 60's and early 70's by the US Department of Defense as an experiment in wide-area-networking to connect together computers that were each running different system so that people at one location could use computing resources from another location. The Internet has metamorphosed from a military Internetwork to an academic research Internetwork to the current commercial Internetwork. It commonly supports services such as email, the World Wide Web, file transfer, and Internet Relay Chat. The Internet is experiencing tremendous growth in the number of users, hosts, and domain names. It is gradually subsuming other medium, such as proprietary computer networks, newspapers, books, television, and the telephone. Internet is also known as "the net", "the information superhighway", and "cyberspace". Internet is a global computer network, which is linked by the international telecommunication lines. The most influential multimedia revolution is Internet.是什么意思？

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