Portal:Internet

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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). 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.

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Håkon Wium Lie, Chief technical officer
Opera is a web browser and Internet suite developed by the Opera Software company. Opera handles common Internet-related tasks such as displaying web sites, sending and receiving e-mail messages, managing contacts, IRC online chatting, downloading files via BitTorrent, and reading web feeds. Opera is offered free of charge for personal computers and mobile phones, but for other devices it must be paid for. Features of Opera include high performance, tabbed browsing, page zooming, mouse gestures, and an integrated download manager. Its security features include built-in phishing protection, strong encryption when browsing secure web sites, and the ability to delete private data such as cookies and browsing history by clicking a button. Opera runs on a variety of personal computer operating systems, including Microsoft Windows, Mac OS X, Linux, FreeBSD, and Solaris. Although evaluations of Opera have been largely positive, Opera has had limited success on personal computers. It is currently the fourth most widely used web browser for personal computers, behind Internet Explorer, Mozilla Firefox, and Safari. Opera has a stronger market share, however, on mobile devices such as mobile phones, smartphones, and personal digital assistants.

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Photo of Tron Guy taken by subject, Jay Maynard
Credit: Jay Maynard

Jay Maynard is a computer programmer and system administrator. He is most famous for his electroluminiscent Tron Guy costume. He became an Internet phenomenon when his costume inspired by the movie Tron spread across the net from postings on Slashdot and Fark.

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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

Bill Gates
William Henry Gates III (born 28 October 1955) is an American entrepreneur, software executive, philanthropist and chairman of Microsoft, the software company he founded with Paul Allen. During his career at Microsoft he has held the positions of CEO and chief software architect, and he remains the largest individual shareholder with more than 9% of the common stock. Gates is one of the best-known entrepreneurs of the personal computer revolution. Although he is widely admired, his business tactics have been criticized as anti-competitive and in some instances ruled as such in court. Since amassing his fortune, Gates has pursued a number of philanthropic endeavors, donating large amounts of money to various charitable organizations and scientific research programs through the Bill & Melinda Gates Foundation, established in 2000. The annual Forbes magazine's list of The World's Billionaires has ranked Gates as the richest person in the world from 1995 to 2007, with recent estimates putting his net worth over $56 billion USD. When family wealth is considered, his family ranks second behind the Walton family, heirs of Wal-Mart founder Sam Walton. In July 2007, Fortune magazine reported that the increase in value of Mexican billionaire Carlos Slim's holdings of stock caused him to surpass Bill Gates as the world's richest man.

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J. Michael Straczynski

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Richard Alan White
The Internet is a powerful new medium that is growing by leaps and bounds. Each day more and more people are logging onto the Net to get information.

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Main topics

Internet topics
Articles
Application layer
ARPANET
Blog
Browsers
CERN
Collaborative software
Computer file
Computer network
Computer networking
DARPA
Data (computing)
Electronic commerce
E-mail
English on the Internet
FidoNet
File sharing
History of the Internet
HTML
HyperCard
Hyperlink
ICANN
Instant messaging
Internet access
Internet capitalization conventions
Internet censorship
Internet Control Message Protocol
Internet democracy
Internet Exchange Point
Internet Governance Forum
Internet privacy
Internet Protocol
Internet Protocols
Internet research
Internetworking
Massively multiplayer online role-playing game
Mosaic (web browser)
National Center for Supercomputing Applications
Net neutrality
Online chat
Peering
Remote access
Transmission Control Protocol
Scale-free network
Search engine
Security
Social network service
Unicode
Uniform resource locator
User agent
User Datagram Protocol
ViolaWWW
Virtual private network
VoIP
Web browser
Web operating system
Web resource
Web service
Wide area network
World Summit on the Information Society
World Wide Web
Lists
List of basic internet topics
List of Internet topics
Academic databases and search engines
List of blogging terms
List of HTTP headers
List of HTTP status codes
List of IP protocol numbers
List of journals available free online
List of IPv6 tunnel brokers
List of PHP editors
List of organizations with .INT domain names
List of social networking websites
List of newsgroups
Comp.* hierarchy
Sci.* hierarchy
List of RFCs
List of search engines
List of virtual communities
List of web directories
List of webcomics
List of websites founded before 1995

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