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The Internet

The Internet. What is a Network? What is the internet? Web Browser Requirements of the Internet Search engines URLs Hypertext Communication on the Internet Sharing of information . What is a Network?. A network is a group of computers connected to each other

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The Internet

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  1. The Internet What is a Network? What is the internet? Web Browser Requirements of the Internet Search engines URLs Hypertext Communication on the Internet Sharing of information

  2. What is a Network? • A network is a group of computers connected to each other • A network allows two or more computers to communicate with each other • Communication could be in the same building or across a larger distance • Networks allow the sharing of data and resources between computers.

  3. The Internet • The Internet is a type of network, this network consists of millions of computers • The Internet is a global network of computers, this means it is spread all over the world • Computers all over the world communicate with each other in order to share data such as files, websites and e-mails

  4. Web Browser • The web browser is the application used to access different pages and files on the Internet • Some examples are; • Internet Explorer • MozillaFirefox • Google Chrome)

  5. What are the Requirements of the Internet? • A computer –a PC or a Laptop, nowadays even mobile phones are capable of accessing the Internet. • A modem - this allows the computer to send and receive data. • A telephone line (or cable connection) – this allows the data to be transmitted from one place to another. • An ISP (Internet Service Provider) account – this is the Internet service subscription ex. Melita

  6. When all the requires are in place, we can use our web browser • From the web browser we can now access different websites using their specific address • How it works • The address is typed by the user • The address is sent to the ISP • The ISP finds the computer (server) which is storing the website • The required website is transferred from the server to the ISP and then to your computer

  7. WWW • WWW stands for World Wide Web • The WWW is the world of ALL the different web pages made available from the Internet • In order to access the WWW (World Wide Web) a web browser is required

  8. Search Engines • The Internet is very large and contains a lot of different web pages • Each web page has an address, it is impossible for us to remember all these addresses • Search engines are used when we forget a web address • A keyword is typed into the search engine and a number of related web pages will be listed

  9. Search Engine Examples • Some examples of search engines include • Google • Yahoo • Bing

  10. Hyperlink • A hyperlink is a clickable link found in a webpage • When a hyperlink is pressed you will be directed to another page • Most hyperlinks are written in blue and underline unless it is a button or tab

  11. URL • URL stands for Universal Resource Locator • The URL is the address of the web page • Examples of some URLs are; • http: // www.gmail.com • http://www.sacredheartmalta.org • http://www.facebook.com

  12. What makes up a URL? • A URL is split into 3 parts; • HTTP stands for Hyper Text Transfer Protocol; this shows how files are to be transferred across the Internet • WWW stands for World Wide Web • Google.com is the domain name • Google is the name of the website • .com is the domain http://www.google.com

  13. Different Domains • There are many variations domains • .com • .edu • .gov • .org • Also, countries can add their extension to the domain, for instance a Maltese .com website would be .com.mt.

  14. Communication • As we said before we use the Internet to access different web pages • The Internet is also often used as a mean of communication • The Internets offers very good means of communicationin different ways

  15. Methods of Communication • E-Mail (electronic mail) – communication is done by sending text messages which can also include attachments • Chatting – communication with each other in real-time using text messages or audio/video through a webcam and microphone • VoIP (Voice over Internet Protocol) – allows the user to make a phone call using the Internet rather than the traditional phone calls

  16. Sharing of Information • Now a days one of the advantages of the Internet is the sharing of information • A lot of content of the Internet is available to the public because it is shared by other computers

  17. Examples • The following is a list of websites which share different kind of resources.

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