The Internet, from the international computer network, to the Internet, (literally) the Internet, the Internet, is a worldwide system of interconnected computer networks based on a set of Internet protocols. The Internet is also called a network of networks because it consists of millions of local and global private, public, academic, business, and government networks interconnected using a variety of wired, optical, and wireless technologies. The Internet provides the physical basis for hosting vast amounts of information resources and services, such as the interconnected World Wide Web (WWW) hypertext documents and e-mail.
As of 2019, the majority of the world’s population had access to the InternetIn everyday language, the word Internet (small Internet) in lower case is most often used in the meaning of the World Wide Web (World Wide Web), and the information available in it, rather than in the meaning of the physical Internet itself. This use can be explained by parallels with the terms “radio” and “television”.
The Internet has no centralized
 management, rules of use or access. Each component network sets its own standards. The rules for using the Internet Protocol address space and the domain name system are centrally defined. It is operated by the Internet Corporation for Assigned Names and Numbers (ICANN), an international non-profit organization headquartered in the United States. Substantiation and standardization of basic protocols (IPv4 and IPv6) is performed by the Internet Engineering Task Force (IETF) a non-profit organization, an open international community of designers, scientists, network operators and service providers.
The network is built on the use of IP and packet routing. Nowadays, the Internet plays an important role in creating the information space of the global society, serves as a physical basis for access to websites and many systems (protocols) of data transmission.

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