Internet Explorer

Windows Internet Explorer (formerly Microsoft Internet Explorer; abbreviated to MSIE or, more commonly, IE), is a series of graphical web browsers developed by Microsoft and included as part of the Microsoft Windows line of operating systems starting in 1995. It has been the most widely used web browser since 1999, attaining a peak of about 95% usage share during 2002 and 2003 with IE5 and IE6.

That percentage share has since declined in the face of renewed competition from other web browsers – Mozilla Firefox most of all. Microsoft spent over $100 million a year on IE[1] in the late 1990s, with over 1,000 people working on it by 1999.[2]

The latest release is Internet Explorer 8, which is available as a free update for Windows XP with Service Pack 2 or later, Windows Server 2003 with Service Pack 1 or later, Windows Vista, and Windows Server 2008, and is included with Windows 7 and Windows Server 2008 R2, except in Europe[3][4].

Versions of Internet Explorer for other operating systems have also been produced, including Internet Explorer Mobile (Windows CE and Windows Mobile), Internet Explorer for Mac and Internet Explorer for UNIX (Solaris and HP-UX).

Internet television

Internet television (otherwise known as Internet TV, Catch-up TV or Online TV) is television service distributed via the Internet. It has become very popular at the end of the first decade of the 21st century due to services such as the BBC iPlayer (in and limited to the United Kingdom) and Hulu (limited to the United States); see List of Internet television providers.

Internet pornography

Internet pornography is pornography that is distributed by means of various sectors of the Internet, primarily via websites, peer-to-peer file sharing, or Usenet newsgroups. While pornography had been traded over the Internet since the 1980s, it was the invention of the World Wide Web in 1991 as well as the opening of the Internet to the general public around the same time that led to an explosion in online pornography.

Like videotapes and DVDs, the Internet has proved popular for distributing pornography because it allows people to view pornography (essentially) anonymously in the comfort and privacy of their homes. It also allows access to pornography by people whose access is otherwise restricted for legal or social reasons.

Internet Protocol

The Internet Protocol (IP) is a protocol used for communicating data across a packet-switched internetwork using the Internet Protocol Suite, also referred to as TCP/IP.

IP is the primary protocol in the Internet Layer of the Internet Protocol Suite and has the task of delivering distinguished protocol datagrams (packets) from the source host to the destination host solely based on their addresses. For this purpose the Internet Protocol defines addressing methods and structures for datagram encapsulation. The first major version of addressing structure, now referred to as Internet Protocol Version 4 (IPv4) is still the dominant protocol of the Internet, although the successor, Internet Protocol Version 6 (IPv6) is being deployed actively worldwide.

Telecommunication

Telecommunication is transmission over a distance for the purpose of communication. In earlier times, this may have involved the use of smoke signals, drums, semaphore, flags or heliograph. In modern times, telecommunication typically involves the use of electronic devices such as the telephone, television, radio or computer. Early inventors in the field of telecommunication include Alexander Graham Bell, Guglielmo Marconi and John Logie Baird. Telecommunication is an important part of the world economy and the telecommunication industry's revenue was estimated to be $1.2 trillion in 2006.

Social network service

A social network service focuses on building online communities of people who share interests and/or activities, or who are interested in exploring the interests and activities of others. Most social network services are web based and provide a variety of ways for users to interact, such as e-mail and instant messaging services.

The main types of social networking services are those which contain category divisions (such as former school-year or classmates), means to connect with friends (usually with self-description pages) and a recommendation system linked to trust. Popular methods now combine many of these, with Facebook and Twitter widely used worldwide; MySpace and LinkedIn being the most widely used in North America;[1] Nexopia (mostly in Canada);[2] Bebo,[3] Hi5, StudiVZ (mostly in Germany), iWiW (mostly in Hungary), Tuenti (mostly in Spain), Decayenne, Tagged, XING;[4], Badoo[5] and Skyrock in parts of Europe;[6] Orkut and Hi5 in South America and Central America;[7] and Friendster, Mixi, Multiply, Orkut, Wretch, Xiaonei and Cyworld in Asia and the Pacific Islands and Orkut and Facebook in India.

There have been some attempts to standardize these services to avoid the need to duplicate entries of friends and interests (see the FOAF standard and the Open Source Initiative), but this has led to some concerns about privacy.

Voice over Internet Protocol

Voice over Internet Protocol (VoIP) is a general term for a family of transmission technologies for delivery of voice communications over IP networks such as the Internet or other packet-switched networks. Other terms frequently encountered and synonymous with VoIP are IP telephony, Internet telephony, voice over broadband (VoBB), broadband telephony, and broadband phone.

Internet telephony refers to communications services — voice, facsimile, and/or voice-messaging applications — that are transported via the Internet, rather than the public switched telephone network (PSTN). The basic steps involved in originating an Internet telephone call are conversion of the analog voice signal to digital format and compression/translation of the signal into Internet protocol (IP) packets for transmission over the Internet; the process is reversed at the receiving end.[1]

VoIP systems employ session control protocols to control the set-up and tear-down of calls as well as audio codecs which encode speech allowing transmission over an IP network as digital audio via an audio stream. Codec use is varied between different implementations of VoIP (and often a range of codecs are used); some implementations rely on narrowband and compressed speech, while others support high fidelity stereo codecs.