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To understand how Internet works, we need to be familiar with some basic concepts
We can access information on the internet with the help of two basic elements: the brows: The browser and the search engine.
A browser is a programme that displays the content of web pages.
For example: Internet explorer, Google Chrome, Mozilla Firefox, Safari, Opera, etc.
A search engine is a computer system that indixes files stored on web-sites. Search engines keep their results up to date by continually crawling the Internet.
For example: Google, Bing, Yahoo!, etc
We type the full address of a web page in the browser. This address is also called the uniform resource locator (URL) and is unique for each web page.
For example: www.google.es, www.rae.es, etc.A server is a computer with special features, prepared to provide uninterrupted services simultaneously to lots of users.

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1.Our attitud,the best protection.
2.Antivirus.
An antivirus is a program that can orotect our computer from attacks by viruses and Trojans if it is kept up to date.Antivirus software searches for fragments of characters that are chacacteristic of viruses and compares them to its databases.

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-identity theft
-a type of computer fraud that uses trickery to obtain information about a user

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4  our computer communitates with other computers following a common set of rules called a protocol .
* The packets of information follow TCP/IP protocol (transfer control protocol/internet protocol).
*servers use the HTTP protocol (hipertext transfer protocol) to send and recive documents over the internet .
5 The DNS server sends the request to the server that hosts the web page we want to visit.The server sends as the information packets thar make up the web pages ,which travel over the network along the quickest path that they can find .
6 Finally ,the packets reach our and are reassemblend.The page is then displayed in our browser .

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See all the wonderful things ENCARNA DEL RIO SANZ has made

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internet is a network of thousands of computers and devices around the world connected by cooper wires , fibre optics, wirreles connections   etc
INTERNET OF THINGS revolutionary concept describes conection of every objets to internet so we can interact with them INTERNET BASICS
BOWSER programme that
displays contenent of a web SEARCH ENGINE
computer sistem

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programs that install themselves on a computer without the users permission for the purpose of causing damage. they can self-replicate and infect other computers. the term trojan takes its name from the trojan horse concept. these viruses are offten hidden inside seemingly harmeless elemts like an image or music file that contains them is opened

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page 37
only 4 FIRST POINTS OF PURPLE SQUARE

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PAGE 44 SIXTH 3 POINTS

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PAGE 44 FIFTH 3 POINTS

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PAGE 44 FOURTH3 POINTS

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PAGE 44 THIRD 3 POINTS

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PAGE 44 SECOND 3 POINTS

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PAGE 44 FIRST 3 POINTS

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PAGE 42 EXERCISE 2 SNAPCHAT

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PAGE 42 EXERCISE 2 WHATSAPP

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PAGE 171  DEFINE THESE KEYWORDS:

1. IP ADRESS

2. SPYWARE

3. FIREWALL

4. PHISHING

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page 38 EXERCISE 3
GIVE YOUR OWN OPINION

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page 38 EXERCISE 1

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page 38 EXERCISE 1

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PAG 37 KEYWORDS ON GREEN SQUARE

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page 37
only 4 LAST POINTS OF PURPLE SQUARE

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PAGE 37
ONLY FIRST PARAGRAPH AND RED SQUARE

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page 36 SOLUTIONS ONLY LAST SQUARE

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page 36 SOLUTIONS ONLY FIREWALL

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page 36 SOLUTIONS ONLY FIRST AND SECOND SQUARES

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page 36 THREATS ONLY SPYWARE AND BLACK HACKERS

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page 36 THREATS ONLY SECOND SQUARE

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page 36 THREATS ONLY FIRST SQUARE

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How internet works
ONLY POINTS 4,5 AND 6 page 35

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How internet works
ONLY POINTS 1,2 AND 3 page 35

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Internet basics pag34

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How does internet work? page 34+