Презентация на тему Internet

used to mean the World Wide Web and accessible

information in it, not in the sense of the physical network. Also uses the terms global network, global network or even one word network, Inet. Increasingly, the Internet is used with a lowercase letter, which can be explained by parallels with the term "radio," "television" with small writing.

access. Each constituent network sets its own standards. Centrally

defined rules using the address space of the Internet Protocol and Domain Name System. Manages the Internet Corporation for Assigned Names and Numbers (Eng. Internet Corporation for Assigned Names and Numbers, or ICANN), an international nonprofit organization headquartered in the United States. Technical rationale and standardization of basic protocols (IPv4 and IPv6) conducts Internet Engineering Task Force (IETF), a nonprofit organization open international community of designers, researchers, network operators and service providers...

or organizations. It reflects the diverse relationships between them

through various social relationships, ranging from casual acquaintances and ending with the close family ties. For the first time the term was proposed in 1954 by John. A. Barnes (in the Class and Committees in a Norwegian Island Parish, «Human Relations»). The maximum size of social networks is around 150 people, and the average - 123 (Danbury and Hill, 2002).

largest social network in Europe after Facebook. Popular mostly

among Russian users, especially in Russia, Belarus, Kazakhstan, Ukraine and Uzbekistan. As of January 2014, there were 239 million VKontakte. Accounts, of which 55 million. Visited daily [4]. According ranking Alexa website are 21 PWM attendance in the world and 2nd in Russia gim (after Yandex) [5]. In Ukraine, the social network as of June 2015, there were more than 12 million active users, the company is the official representative office in Kiev [6]. VKontakte began working on Oct. 10, 2006 and was originally positioned as a social network for graduates of Russian universities (a kind of analogue of the American Facebook). In January 2009 VKontakte attendance for the first time overtaken its main rival - another Russian social network Classmates.

Its website was launched on February 4, 2004, by Mark

Zuckerberg with his Harvard College roommates and fellow students Eduardo Saverin, Andrew McCollum, Dustin Moskovitz and Chris Hughes.[8][9][10] The founders had initially limited the website's membership to Harvard students, but later expanded it to colleges in the Boston area, the Ivy League, and Stanford University. It gradually added support for students at various other universities and later to high-school students. Since 2006, anyone who is at least 13 years old was allowed to become a registered user of the website, though the age requirement may be higher depending on applicable local laws.[11] Its name comes from the face book directories often given to American university students.

Full database - an online service (software and hardware

with a web interface), which allows you to search the web. In common parlance in the search engine to understand web site, which contains the interface (front-end) system. The software part is a search engine search engine (search engine) - a set of programs that provides the functionality of a search engine and usually a trade secret developer of search engine. Most search engines are looking for information on Internet sites, but there are also systems that can search for files on ftp-servers, goods in shops, as well as information in newsgroups Usenet. Indexing Search Engine handled bots. According to analyst firm comScore all search sites in December 2007 processed 66 billion 221 million search queries.