First tasks

This is the first time I write on a blog. I hope it will be easier than I feared. I

Introduction

The Internet, sometimes called simply “the Net,” is a worldwide system of computer networks – a network of networks in which users at any one computer can, if they have permission, get information from any other computer (and sometimes talk directly to users at other computers).

It was conceived by the Advanced Research Projects Agency (ARPA) of the U.S. government in 1969 and was first known as the ARPANET.

 

 

From: http://searchwindevelopment.techtarget.com/sDefinition/0,,sid8_gci212370,00.html

SearchWinDevelopment.com Definitions

 

DEFINITION”- A technical definition of the World Wide Web is: all the resources and users on the Internet that are using the Hypertext Transfer Protocol (HTTP).

A broader definition comes from the organization that Web inventor Tim Berners-Lee helped found, the World Wide Web Consortium (W3C):

“The World Wide Web is the universe of network-accessible information, an embodiment of human knowledge.”

The most widely used part of the Internet is the World Wide Web (often abbreviated “WWW” or called “the Web”). Its outstanding feature is hypertext, a method of instant cross-referencing. In most Web sites, certain words or phrases appear in text of a different color than the rest; often this text is also underlined. When you select one of these words or phrases, you will be transferred to the site or page that is relevant to this word or phrase. Sometimes there are buttons, images, or portions of images that are “clickable.” If you move the pointer over a spot on a Web site and the pointer changes into a hand, this indicates that you can click and be transferred to another site.

 

http://www.centerspan.org/tutorial/net.htm

INTERNET TUTORIAL

 

The History of the Internet

Many people think that the Internet is a recent innovation, when in fact the essence of it has been around for over a quarter century. The Internet began as ARPAnet, a U.S. Department of Defense project to create a nationwide computer network that would continue to function even if a large portion of it were destroyed in a nuclear war or natural disaster.

During the next two decades, the network that evolved was used primarily by academic institutions, scientists and the government for research and communications. The appeal of the Internet to these bodies was obvious, as it allowed disparate institutions to connect to each others’ computing systems and databases, as well as share data via E-mail.

The nature of the Internet changed abruptly in 1992, when the U.S. government began pulling out of network management, and commercial entities offered Internet access to the general public for the first time. This change in focus marked the beginning of the Internet’s astonishing expansion.

According to a survey conducted by CommerceNet and Nielsen Media Research in early 1997, nearly one out of every four Americans over the age of 16 is an Internet user. And the number of users worldwide is believed to be well into the tens of millions. Other statistics are equally startling:

A CNN report stated that Internet traffic in 1996 was 25 times what it was just two years earlier.

The market research group IntelliQuest pegged the number of Internet users in the U.S. in late 1996 at 47 million – a 34 percent increase over the first quarter of that year.

According to IBM, 146 countries currently have at least some level of Internet access.

The technology research firm IDG estimates that by century’s end, one billion people worldwide will have access to personal computers—more than doubling the computer-savvy population of 1996.

The Internet explosion coincides with the advent of increasingly powerful yet reasonably priced personal computers with easy-to-use graphical operating systems. The result has been an attraction of recent computer “converts” to the network, and new possibilities for exploiting a wealth of multimedia

FPRIVATE “TYPE=PICT;ALT=Look it up!”

capabilities.

For further details on the Internet’s history, go to http://www.internetvalley.com/intval.html

 

 

 

The World Wide Web (commonly shortene

The Internet, sometimes called simply “the Net,” is a worldwide system of computer networks – a network of networks in which users at any one computer can, if they have permission, get information from any other computer (and sometimes talk directly to users at other computers).

It was conceived by the Advanced Research Projects Agency (ARPA) of the U.S. government in 1969 and was first known as the ARPANET.

 

 

From: http://searchwindevelopment.techtarget.com/sDefinition/0,,sid8_gci212370,00.html

SearchWinDevelopment.com Definitions

 

DEFINITION”- A technical definition of the World Wide Web is: all the resources and users on the Internet that are using the Hypertext Transfer Protocol (HTTP).

A broader definition comes from the organization that Web inventor Tim Berners-Lee helped found, the World Wide Web Consortium (W3C):

“The World Wide Web is the universe of network-accessible information, an embodiment of human knowledge.”

The most widely used part of the Internet is the World Wide Web (often abbreviated “WWW” or called “the Web”). Its outstanding feature is hypertext, a method of instant cross-referencing. In most Web sites, certain words or phrases appear in text of a different color than the rest; often this text is also underlined. When you select one of these words or phrases, you will be transferred to the site or page that is relevant to this word or phrase. Sometimes there are buttons, images, or portions of images that are “clickable.” If you move the pointer over a spot on a Web site and the pointer changes into a hand, this indicates that you can click and be transferred to another site.

 

http://www.centerspan.org/tutorial/net.htm

INTERNET TUTORIAL

 

The History of the Internet

Many people think that the Internet is a recent innovation, when in fact the essence of it has been around for over a quarter century. The Internet began as ARPAnet, a U.S. Department of Defense project to create a nationwide computer network that would continue to function even if a large portion of it were destroyed in a nuclear war or natural disaster.

During the next two decades, the network that evolved was used primarily by academic institutions, scientists and the government for research and communications. The appeal of the Internet to these bodies was obvious, as it allowed disparate institutions to connect to each others’ computing systems and databases, as well as share data via E-mail.

The nature of the Internet changed abruptly in 1992, when the U.S. government began pulling out of network management, and commercial entities offered Internet access to the general public for the first time. This change in focus marked the beginning of the Internet’s astonishing expansion.

According to a survey conducted by CommerceNet and Nielsen Media Research in early 1997, nearly one out of every four Americans over the age of 16 is an Internet user. And the number of users worldwide is believed to be well into the tens of millions. Other statistics are equally startling:

A CNN report stated that Internet traffic in 1996 was 25 times what it was just two years earlier.

The market research group IntelliQuest pegged the number of Internet users in the U.S. in late 1996 at 47 million – a 34 percent increase over the first quarter of that year.

According to IBM, 146 countries currently have at least some level of Internet access.

The technology research firm IDG estimates that by century’s end, one billion people worldwide will have access to personal computers—more than doubling the computer-savvy population of 1996.

The Internet explosion coincides with the advent of increasingly powerful yet reasonably priced personal computers with easy-to-use graphical operating systems. The result has been an attraction of recent computer “converts” to the network, and new possibilities for exploiting a wealth of multimedia

FPRIVATE “TYPE=PICT;ALT=Look it up!”

capabilities.

For further details on the Internet’s history, go to http://www.internetvalley.com/intval.html

The World Wide Web (commonly shortened to the Web) is a system of interlinked hypertext documents accessed via the Internet. With a Web browser, one can view Web pages that may contain text, images, videos, and other multimedia and navigate between them using hyperlinks. The World Wide Web was created in 1989 by British scientist Tim Berners-Lee, working at the European Organization for Nuclear Research (CERN) in Geneva, Switzerland, and released in 1992. Since then, Berners-Lee has played an active role in guiding the development of Web standards (such as the markup languages in which Web pages are composed), and in recent years has advocated his vision of a Semantic Web.

 

How it works

 

 

 

 

Viewing a Web page on the World Wide Web normally begins either by typing the URL of the page into a Web browser, or by following a hyperlink to that page or resource. The Web browser then initiates a series of communication messages, behind the scenes, in order to fetch and display it.

First, the server-name portion of the URL is resolved into an IP address using the global, distributed Internet database known as the domain name system, or DNS. This IP address is necessary to contact and send data packets to the Web server.

The browser then requests the resource by sending an HTTP request to the Web server at that particular address. In the case of a typical Web page, the HTML text of the page is requested first and parsed immediately by the Web browser, which will then make additional requests for images and any other files that form a part of the page. Statistics measuring a website’s popularity are usually based on the number of ‘page views‘ or associated server ‘hits‘, or file requests, which take place.

Having received the required files from the Web server, the browser then renders the page onto the screen as specified by its HTML, CSS, and other Web languages. Any images and other resources are incorporated to produce the on-screen Web page that the user sees.

Most Web pages will themselves contain hyperlinks to other related pages and perhaps to downloads, source documents, definitions and other Web resources. Such a collection of useful, related resources, interconnected via hypertext links, is what was dubbed a “web” of information. Making it available on the Internet created what Tim Berners-Lee first called the WorldWideWeb (a term written in CamelCase, subsequently discarded) in 1990.[1

 

(from wikipedia)

 

 

 

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