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 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 inter-linked hypertext documents and applications of the World Wide Web (WWW), electronic mail, telephony, and file sharing. The origins of the Internet date back to the development of packet switching and research commissioned by the United States Department of Defense in the 1960s to enable time-sharing of
computers.[1] The ARPANET's primary precursor network initially served as a backbone for the interconnection of regional academic and military networks in the 1970s. The funding of the National Science Foundation Network as a new backbone in the 1980s and private funding for other commercial extensions led to worldwide participation in the development of new networking technologies and the merger of many networks.[2] The linking of commercial networks and enterprises by the early 1990s marked the beginning of the transition to the modern Internet [3] 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,
commercialization incorporated its services and technologies into virtually every aspect of modern life. Most traditional communication media, including telephony, radio, television, paper mail, and newspapers, are reshaped, redefined, or even bypassed by the Internet, giving birth to new services such as email, Internet telephony, Internet television, online music, digital newspapers, and video streaming websites. Newspapers, books, and other print publishing are adapting to website technology or are reshaped into blogging, web feeds, and online news aggregators. The Internet has enabled and accelerated new personal interactions 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 centralized governance in either technological implementation or policies for access and usage; each constituent network sets its own policies.[4]
The overreaching definitions of the two principal namespaces 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 the Internet Engineering Task Force (IETF) activity, a non-profit organization of loosely affiliated international participants that anyone may associate with by contributing technical expertise.[5] In November 2006, the Internet was included on USA Today's list of New Seven Wonders.
The Internet allows us to communicate with people sitting at remote locations. There are various apps available on the web that uses the Internet as a medium for communication. One can find various social networking sites such as Facebook, Twitter, Yahoo, Google+ Flickr Orkut One can surf for any kind of information. Information regarding various topics such as Technology, Health & Science, Social Studies, Geographical Information, Information Technology, Products, etc., can be surfed with the help of a search engine. Apart from communication and source of information, the internet also serves as a medium for entertainment. Following are the various modes for entertainment over the internet. Online Television
Online Games Songs Videos Social Networking Apps Internet allows us to use many services like Internet Banking Matrimonial Services Online Shopping Online Ticket Booking Online Bill Payment Data Sharing E-mail Internet provides the concept of electronic commerce that allows the business deals to be conducted on electronic systems Disadvantages, However, Internet has proved to be a powerful source of information in almost every field, yet there exist many disadvantages discussed below:
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