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The Internet is a global system of interconnected computer[3] networks that use standardized communication protocols, primarily the TCP/IP, to link devices worldwide. Originating from the term ‘internetted’ used in 1849, the term ‘Internet’ was later used by the US War Department in 1945. Its development began with computer scientists creating time-sharing systems in the 1960s and further progressed with the establishment of ARPANET in 1969. The Internet is self-governed, without a central authority, and its principal name spaces are administered by the Internet Corporation for Assigned Names and Numbers (ICANN). It has significantly transformed traditional communication media and has grown exponentially over the years, with internet users increasing 20% to 50% annually. In 2019, over half of the world population used the Internet. The Internet protocol[1] suite, which includes TCP/IP and four conceptual layers, guides internet packets to their destinations. Essential services like email[4] and Internet telephony operate on the Internet. The World Wide Web[2], a global collection of interconnected documents, is a key component of the Internet.

Terms definitions
1. Internet Protocol ( Internet protocol ) The Internet Protocol (IP) is a principal technology that drives the internet. It's a set of rules that govern data transmission across a network. IP is responsible for addressing host interfaces, encapsulating data into packets called 'datagrams', and routing these datagrams across networks. It uses a specific packet format and addressing system. An integral part of its function is to source and destination IP addresses. The IP has seen multiple versions, including IPv4 and IPv6, with the latter introducing larger 128-bit addresses. The IP aims to provide 'best-effort delivery', despite being characterized as unreliable due to network infrastructure. It also plays a role in managing link capacity and data transmission, including the size of data packets. Over the years, security and development have become significant aspects of IP, with continuous efforts to address vulnerabilities and propose advancements.
2. World Wide Web ( World Wide Web ) The World Wide Web, often referred to as the Web, is a widespread information system platform that billions of people interact with daily. Invented by Tim Berners-Lee in 1989 at the European Organization for Nuclear Research (CERN), the Web was designed to support connections between multiple databases on different computers. Its function is to facilitate content sharing over the Internet in a user-friendly manner. This is achieved through web servers that make documents and media content available. Users can locate and access these resources through Uniform Resource Locators (URLs). The Web supports various content types and allows for easy navigation across websites via hyperlinks. Its use extends to various sectors including education, entertainment, commerce, and government, with information provided by companies, organizations, government agencies, and individual users.
Internet (Wikipedia)

The Internet (or internet) is the global system of interconnected computer networks that uses the Internet protocol suite (TCP/IP) to communicate between networks and devices. It is a network of networks that consists of private, public, academic, business, and government networks of local to global scope, linked by a broad array of electronic, wireless, and optical networking technologies. The Internet carries a vast range of information resources and services, such as the interlinked hypertext documents and applications of the World Wide Web (WWW), electronic mail, telephony, and file sharing.

The origins of the Internet date back to research to enable time-sharing of computer resources and the development of packet switching in the 1960s. The set of rules (communication protocols) to enable internetworking on the Internet arose from research and development commissioned in the 1970s by the Defense Advanced Research Projects Agency (DARPA) of the United States Department of Defense in collaboration with universities and researchers across the United States and in the United Kingdom and France. The ARPANET initially served as a backbone for the interconnection of regional academic and military networks in the United States to enable resource sharing. The funding of the National Science Foundation Network as a new backbone in the 1980s, as well as private funding for other commercial extensions, encouraged worldwide participation in the development of new networking technologies and the merger of many networks using DARPA's Internet protocol suite. The linking of commercial networks and enterprises by the early 1990s, as well as the advent of the World Wide Web, marked the beginning of the transition to the modern Internet, and generated a sustained exponential growth as generations of institutional, personal, and mobile computers were connected to the network. Although the Internet was widely used by academia in the 1980s, the subsequent commercialization in the 1990s and beyond incorporated its services and technologies into virtually every aspect of modern life.

Most traditional communication media, including telephone, radio, television, paper mail, and newspapers, are reshaped, redefined, or even bypassed by the Internet, giving birth to new services such as email, Internet telephone, Internet television, online music, digital newspapers, and video streaming websites. Newspaper, book, and other print publishing have adapted to website technology or have been reshaped into blogging, web feeds, and online news aggregators. The Internet has enabled and accelerated new forms of personal interaction through instant messaging, Internet forums, and social networking services. Online shopping has grown exponentially for major retailers, small businesses, and entrepreneurs, as it enables firms to extend their "brick and mortar" presence to serve a larger market or even sell goods and services entirely online. Business-to-business and financial services on the Internet affect supply chains across entire industries.

The Internet has no single centralized governance in either technological implementation or policies for access and usage; each constituent network sets its own policies. The overarching definitions of the two principal name spaces on the Internet, the Internet Protocol address (IP address) space and the Domain Name System (DNS), are directed by a maintainer organization, the Internet Corporation for Assigned Names and Numbers (ICANN). The technical underpinning and standardization of the core protocols is an activity of the Internet Engineering Task Force (IETF), a non-profit organization of loosely affiliated international participants that anyone may associate with by contributing technical expertise. In November 2006, the Internet was included on USA Today's list of the New Seven Wonders.


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