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Portal:Internet

From Wikipedia, the free encyclopedia

The Internet Portal

An Internet kiosk

The Internet is a global system of interconnected computer networks, consisting of millions of private and public, academic, business, and government networks of local to global scope that are linked by copper wires, fiber-optic cables, wireless connections, and other technologies. The Internet appears to its users as a single worldwide network accessible to the general public. The protocol that makes it possible to use the millions of networks composing the Internet as if they were one network is a special type of packet switching known as IP or The Internet Protocol.

A computer that connects to the Internet can access information from a vast number of servers and other computers. An Internet connection also allows the computer to send information through the network; that information may be saved and ultimately accessed by a variety of servers and other computers. Much of the information widely accessible through use of the Internet consists of the interlinked hypertext documents and other resources of the World Wide Web (WWW). Web users typically send and receive information using a web browser. Other software for interacting with computer networks includes specialized programs for electronic mail, online chat, file transfer and file sharing.

Information is moved around the Internet by packet switching using the standardized Internet Protocol Suite (TCP/IP) which defines how packets are moving in any platform especially the transport layer. The Internet Protocol Suite consists of several layers of protocols. The lowest layer (the link layer) deals with protocols that transmit data over specific technologies, such as Ethernet or Wi-Fi. The highest layer (the application layer) supports specific applications, such as e-mail and file transfer. In between are the Internet layer, which provides for transmitting packets over any conceivable technology, and the transport layer, which provides for various services such as reliable delivery of packets or real-time streaming of packets.

Selected article

A parody of unwarranted fears of the HTTP "cookie".
An HTTP cookie is a parcel of textual information sent by a server to a World Wide Web browser and then sent back by the browser each time it accesses that server. HTTP cookies are used for user authentication, user tracking, and maintaining user-specific information such as site preferences and electronic shopping carts. Cookies have been of concern for Internet privacy, since they can be used for tracking the browsing of a user. As a result, they have been subject to legislation in various countries such as the United States, as well as the European Union. Cookies have also been criticised because the identification of users they provide is not always accurate and because they can be used for network attacks. Some alternatives to cookies exist, but have their own drawbacks. On the other hand, cookies have been subject to a number of misconceptions, mostly based on the erroneous notion that they are computer programs. Most modern browsers allow users to decide whether to accept cookies, but rejection makes some Web sites unusable.

Selected picture

iPhone at MacWorld
Credit: blakeburris

The iPhone is a multimedia, Internet-enabled mobile phone designed and marketed by Apple Inc. It has a multi-touch screen with virtual keyboard and buttons. The iPhone was introduced, first in the United States on June 29, 2007 with much media frenzy and then in the United Kingdom, Germany and France in November 2007. It was named Time magazine's Invention of the Year in 2007.

News

Wikinews Internet portal
  • October 19: Digital security researchers publicly reveal vulnerability in WPA2 WiFi protocol
  • September 29: Russia asks Facebook to comply with personal data policy
  • September 21: Al Jazeera says Snapchat's act a 'clear attack on the rights of journalists' as Snapchat blocks Qatar-based news network's channel in Saudi Arabia
  • June 17: Amazon.com to acquire Whole Foods at US$42 per share
  • May 19: 17 million accounts' hashed passwords, emails stolen, Zomato says
  • May 10: Cyberattack, not HBO comedian, caused website wipeout, says FCC
  • April 28: Debian to shutdown public File Transfer Protocol services
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WikiProjects

Main project: WikiProject Internet

WikiProjects

Related WikiProjects: Blogging • Websites • Early Web History • Internet culture

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Selected biography

Photo by Irene Fertik, USC News Service. Copyright 1994, USC
Jonathan Bruce Postel (6 August 1943 – 16 October 1998) made many significant contributions to the development of the Internet, particularly in the area of standards. He is principally known for being the Editor of the Request for Comment (RFC) document series, and for serving as the Internet Assigned Numbers Authority until his death. While studying at UCLA, he was involved in early work on the ARPANET; he later moved to the Information Sciences Institute at the University of Southern California, where he spent the rest of his career. Postel served on the Internet Architecture Board and its predecessors for many years. He was the original and long-time .us Top-Level Domain administrator. He also managed the Los Nettos Network. The Internet Society's Postel Award is named in his honor, as is the Postel Center at Information Sciences Institute.

Did you know...

Jörg Haider

Categories

Selected quote

Tim Berners-Lee
You affect the world by what you browse.
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