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The Internet
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The Internet. What is the Internet? The Internet is a network of networks. It gives users access to a wide variety of information from millions of.

Jan 16, 2016

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Abraham Burke
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Page 1: The Internet. What is the Internet?  The Internet is a network of networks.  It gives users access to a wide variety of information from millions of.

The Internet

Page 2: The Internet. What is the Internet?  The Internet is a network of networks.  It gives users access to a wide variety of information from millions of.

What is the Internet?

The Internet is a network of networks.

It gives users access to a wide variety of information from millions of different sources.

It also gives users access to electronic mail (email).

Page 3: The Internet. What is the Internet?  The Internet is a network of networks.  It gives users access to a wide variety of information from millions of.

What is the Internet?

To access the Internet users need: A computer. A modem. A telephone line or

broadband connection. An Internet Service

Provider (ISP).

Page 4: The Internet. What is the Internet?  The Internet is a network of networks.  It gives users access to a wide variety of information from millions of.

What is the Internet?

Once a user is ‘online’ they can access information produced by content providers.

A content provider can vary from a large company that sells its products online to an individual who has a single page website.

Page 5: The Internet. What is the Internet?  The Internet is a network of networks.  It gives users access to a wide variety of information from millions of.

Examples of content providers

Page 6: The Internet. What is the Internet?  The Internet is a network of networks.  It gives users access to a wide variety of information from millions of.

The World Wide Web

Most content providers are part of the World Wide Web (www).

The World Wide Web forms part of the Internet where graphics, sound, video, animation, and text can be blended together to form a website.

Page 7: The Internet. What is the Internet?  The Internet is a network of networks.  It gives users access to a wide variety of information from millions of.

The World Wide Web

These are created using ‘hypertext’, which allows links between the different media to be made as well as links between web pages and websites.

Page 8: The Internet. What is the Internet?  The Internet is a network of networks.  It gives users access to a wide variety of information from millions of.

The World Wide Web

Web pages and websites can be viewed using special software called ‘web browsers’ (e.g. Netscape, Internet Explorer).

Page 9: The Internet. What is the Internet?  The Internet is a network of networks.  It gives users access to a wide variety of information from millions of.

The World Wide Web

Websites are created using html (Hyper Text Mark-up Language), although other program languages can also be used (e.g. Java and Java Script).

Page 10: The Internet. What is the Internet?  The Internet is a network of networks.  It gives users access to a wide variety of information from millions of.

The World Wide Web

Websites can be found in two different ways: By typing the website’s URL (Universal

Resource Locator) into a search engine. Using the ‘search’ facility in a search

engine.

Page 11: The Internet. What is the Internet?  The Internet is a network of networks.  It gives users access to a wide variety of information from millions of.

The World Wide Web

Once a website has been found, its location can be ‘saved’ by the browser in Favourites (Internet Explorer) or Bookmark (Netscape).

Page 12: The Internet. What is the Internet?  The Internet is a network of networks.  It gives users access to a wide variety of information from millions of.

Examples of search engines

Page 13: The Internet. What is the Internet?  The Internet is a network of networks.  It gives users access to a wide variety of information from millions of.

Newsgroups and chat rooms

Newsgroups are Internet-based discussion groups devoted to discussing specific topics or interests (e.g. rock bands, world politics, hobbies or sports).

There are currently over 5,000 newsgroups.

Page 14: The Internet. What is the Internet?  The Internet is a network of networks.  It gives users access to a wide variety of information from millions of.

Newsgroups and chat rooms

Chat rooms are pages on a website or online service where users can ‘chat’ with other users.

This is done by typing messages that are displayed on the screens of others users who are logged-on to the ‘chat room’.

Chat rooms are also called ‘online forums’.

Page 15: The Internet. What is the Internet?  The Internet is a network of networks.  It gives users access to a wide variety of information from millions of.

Electronic mail (email)

Emails are messages sent via a computer network to individuals or groups of individuals.

Although emails are usually text, users can attach files that include graphics, sound, and video.

Email addresses include the @ symbol, such as [email protected].

Page 16: The Internet. What is the Internet?  The Internet is a network of networks.  It gives users access to a wide variety of information from millions of.

Electronic mail (email)

Emails can be created online (i.e. whilst connected to the Internet – ideal for users who have broadband Internet connection) or offline (i.e. before connecting to the Internet – ideal for users who have expensive dial-up Internet connection).

Page 17: The Internet. What is the Internet?  The Internet is a network of networks.  It gives users access to a wide variety of information from millions of.

Electronic mail (email)

The addressee’s email address is typed in or selected from the address book.

The email addresses of people who are to be sent a copy of the email (Cc = carbon copy) are typed in or selected from the address book.

Subject of the email is then added.

The text of the email is then typed in.

Any attachments (files that are to be sent with the email) are attached.

The email can then be sent.