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INTERNET

INDEXINTRODUCTIONSEARCH ENGINES WEB BROWSERSCOMMUNICATIONSOCIAL NETWORKING SITESADVANTAGESDISADVANTAGES

INTRODUCTIONThe Internet is a global system of interconnected computer networks that use the standard Internet protocol suite (TCP/IP) to link several billion devices worldwide. It is an international network of networks that consists of millions of private, public, academic, business, and government packet switched networks, linked by a broad array of electronic, wireless, and optical networking technologies.

• The Internet carries an extensive range of information resources and services, such as the inter-linked  documents and applications of the World Wide Web(WWW), the infrastructure to support emResearch into packet switching started in the early 1960s and packet switched networks such as Mark I at NPL in the UK, ARPANET,CYCLADES, Merit Network,Tymnet, and Telenet, were developed in the late 1960s and early 1970s using a variety of protocols. The ARPANET in particular led to the development of protocols for internetworking, where multiple separate networks could be joined together into a network of networks.

•  Access to the ARPANET was expanded in 1981 when the National Science Foundation (NSF) developed the Computer Science Network (CSNET). In 1982, the Internet Protocol Suite (TCP/IP) was standardized and the concept of a world-wide network of fully interconnected TCP/IP networks called the Internet was introduced.

• TCP/IP network access expanded again in 1986 when the National Science Foundation Network (NSFNET) provided access to supercomputer sites in the United States from research and education organizations, first at 56 kbit/s and later at 1.5 Mbit/s and 45 Mbit/s.[27] Commercial Internet service providers (ISPs) began to emerge in the late 1980s and early 1990s. The ARPANET was decommissioned in 1990.

• Many people use the terms Internet and World Wide Web, or just the Web, interchangeably, but the two terms are not synonymous. TheWorld Wide Web is only one of hundreds of services used on the Internet. The Web is a global set of documents, images and other resources, logically interrelated by hyperlinks and referenced with Uniform Resource Identifiers (URIs). URIs symbolically identify services , servers, and other databases, and the documents and resources that they can provide. Hypertext Transfer Protocol (HTTP) is the main access protocol of the World Wide Web. Web services also use HTTP to allow software systems to communicate in order to share and exchange business logic and data.

Worldwide Internet users

2005 2010 2013a

World population[33]

6.5 billion 6.9 billion 7.1 billion

Not using the Internet

84% 70% 61%

Using the Internet

16% 30% 39%

Users in the developing

world

8% 21% 31%

Users in the developed

world

51% 67% 77%

SEARCH ENGINES

• World Wide Web browser software, such as Microsoft's Internet Explorer Mozilla Firefox, Opera, Apple's Safari, and Google Chrome, lets users navigate from one web page to another via hyperlinks embedded in the documents. These documents may also contain any combination of computer data, including graphics, sounds, text video, multimedia and interactive content that runs while the user is interacting with the page. Client-side software can include animations, games, office applications and scientific demonstrations. Through keyword-driven Internet research using search engines like Yahoo! and Google, users worldwide have easy, instant access to a vast and diverse amount of online information. Compared to printed media, books, encyclopedias and traditional libraries, the World Wide Web has enabled the decentralization of information on a large scale.

Yahoo! Inc. is an American multinational Internet corporation headquartered in Sunnyvale, California.•Customer service: 00 1 800-318-0612•CEO: Marissa Mayer•Founded: January 1994, Santa Clara, California United States•Stock price: YHOO (NASDAQ) US$ 50.86 +0.21 (+0.41%)26 Dec, 4:03 pm GMT-5 •Founders: Jerry Yang, David Filo

YAHOO!

GOOGLE Internet company Google is a United States-head

quartered multinational corporation specializing in Internet-related services and products. These include online advertising technologies, search, cloud computing, and software.

Founder: September 4, 1998, Menlo Park, California, United States

CEO: Larry Page Headquarters: Mountain View, CA, United States of

America Stock price: GOOG (NASDAQ) US$ 534.03 +5.26

(+0.99%)26 Dec, 4:03 pm GMT-5 - Disclaimer

Founders: Larry Page, Sergey Brin

WEB BROWSERS

Mozilla firefox• Developer-mozilla foundation and contributors mozilla

corporation• Initial release-semptember 23, 2002; 12 years ago• Devolepment status-active• Written in-C/C++,Java script , cascading style sheets , XUL , XBL• Operating system-windows , OS X , linux , Android , FreeBSD• Size-22 MB: Windows

44 MB: OS X 27-28 MB: Linux 22 MB: Android 510 MB: source code

• Available in-79 languages• Type-web browsers• Liscence-MPL• Website-mozilla.org/firefox• Standard-HTML , CSS3 , RSS , Atom

Google chromeDeveloper-Google Inc.Initial release -September 2, 2008Stable release-Microsoft Windows 33.0.1750.154  (March 14,

2014; 8 months ago)• Linux and Mac OS X 33.0.1750.152  (March 14,

2014; 8 months ago) Android 33.0.1750.166 (ARM, x86)  (March 14, 2014; 8 months ago)

• iOS 33.0.1750.15  (March 10, 2014; 9 months ago)Development status-Active Written in- C++, assembly, Python ,java script

operating systems- Android (4.0 and later) iOS (4.3 or later) Linux OS X (10.6 and later) Windows XP and later

Available in-50 languagesWebsite-www.google.com/chrome

INTERNET EXPLORER• Developer-Microsoft• Stable release-10.0.6 • Preview release-N/A• Development status-Active• Written in- C++• Operating system-Microsoft

Windows Windows Phone• License-propreitary software• Website-http://windows.microsoft.com/en-

US/internet-explorer/download-ie

COMMUNICATION• Email is an important communications service

available on the Internet. The concept of sending electronic text messages between parties in a way analogous to mailing letters or memos predates the creation of the Internet. Pictures, documents and other files are sent as email attachments. Emails can be cc-ed to multiple email addresses. Internet telephony is another common communications service made possible by the creation of the Internet. VoIP stands for Voice-over-Internet Protocol, referring to the protocol that underlies all Internet communication. The idea began in the early 1990s with walkie-talkie-like voice applications for personal computers

Social networking sites

• Social networking websites such as Facebook, Twitter, and Myspace have created new ways to socialize and interact. Users of these sites are able to add a wide variety of information to pages, to pursue common interests, and to connect with others. It is also possible to find existing acquaintances, to allow communication among existing groups of people. Sites like LinkedIn foster commercial and business connections. YouTube and Flickr specialize in users' videos and photographs.

Facebook• Facebook is an online social networking service

headquartered in Menlo Park, California. Its website was launched on February 4, 2004, by Mark Zuckerberg with his college roommates and fellow Harvard

• Founded: February 4, 2004, Cambridge, Massachusetts, United States

• CEO Mark Zuckerberg• Founders: Mark Zuckerberg, Dustin

Moskovitz, Eduardo Saverin ,Andrew McCollum, Chris Hughes

• Stock price: FB (NASDAQ) US$ 80.78 +0.01 (+0.01%)

TWITTER• Twitter is an online social networking service that enables

users to send and read short 140-character messages called "tweets". Registered users can read and post tweets, but unregistered users can only read them.

•  Stock price: TWTR (NYSE) US$ 37.60 -0.01 (-0.03%)26 Dec, 4:01 pm GMT-5

• Founded: March 21, 2006, San Francisco, California, United States

• CEO: Dick Costolo• Founders: Evan Williams, Noah Glass, Jack Dorsey, 

Biz Stone

ADVANTAGES• 1) we can get information on any subject

2) Search engines are powerful 3) Ability to do research from your home versus research libraries. 4) Information at various levels of study. Everything from scholarly articles to ones directed at children. 5) Message boards where people can discuss ideas on any topic. Ability to get wide range of opinions. People can find others that have a similar interest in whatever they are interested in. 

DISADVANTAGES• 1) There is a lot of wrong information on the internet.

Anyone can post anything, and much of it is garbage. 2) There are predators that hang out on the internet waiting to get unsuspecting people in dangerous situations. 3) Some people are getting addicted to the internet and thus causing problems with their interactions of friends and loved ones. 4) Pornography that can get in the hands of young children too easily. 5) Easy to waste a lot of time on the internet. You can start surfing, and then realize far more time has passed than you realized. Internet and television together of added to the more sedentary lifestyles of people which further exacerbates the obesity problem. 

SUBMITTED BY- SAMANDEEP

SUBMITTED TO-SNEHA MA’AM

SOURCE-INTERNET http://www.wikipedia.com