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Chats are a way to exchange mesaages intantly with one or several other users who are online simultaneously

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A blog is a place where a person writes information for other people to read.

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Video conferencing is a telecommunivation technology that allows sevelar individuals to communicate simultaneously with voice and image.
The users of the "conference" need:

-A computer

-A web cam

-A microphone and soeakers

-The video conference software, wich is normally free, such as Skype or Messenger

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You probably know what email is: a way to send a letter from one address to another address

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SEARCHING FOR INFORMATION ON THE INRTERNET

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SEARCHING FOR INFORMATION ON THE INRTERNET

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There are some web pages that have programs called "search engines" . These programs don't look for informarion, they look for web pages with a similar  title.
The most famous search engine is Google.

1- The user can select what kind of information to  search.

2- The user types in "keywords"

3- Click on "Search".

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Each computer connected to the internet has a unique identifying number, called an "IP Address" (Internet Protocol, which is the language that computers use to communicate over the internet)
An IP address has four numbers separed by dots: 209.17.05.217

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The internet is many routers conectes to each other.
The routers pass the message, making the connection from the computer that sends the information to the computer that recives the information.
There are normally tens of thousands of possible routers to the desired destination, so it is important that the routers chose the best route.

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Hyper Text Markup Language (HTML) is the programming language for web pages

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This is where the file is in the server and the file name.

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The hostname is the addres yhat we want to visit.

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The protocol are the characters before the hostname. Examples are http, ftp, telnet... A colon (:) and two forward slashes (//) separate the protocol from the hostname.

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The URL is teh address that we write in the web beowser to connect to a web site. It has four parts

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A web server is a computer that stores web pages (HTML docun¡ments.)
When we visit a web page, then internet copies the web page from the server to our computer.

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The web began in 1989 when Tim Berners-Lee and Robert Cailliau designed a system to link documents stored in different computers.
In 1990 Tim Berners-Lee proposed the Wordl Wide Wed with a system called HyperText, to link documents.
In 1993 a program called Mosaic sparked the popularity of the World Wide Web.

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The internet is not the first telecommunication technology: it is the most recent of many telecommunications developments during the 19th and 20th centuries.