INFORMATICSInternet Essensial

By. Dzikri Nashrul Fauzi_X.2

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USES OF THE INTERNET

Imagine a scenario where you want to

communicate by using a computer on your

network with a computer on another network.

For this, both the networks need to be

connected.

The Internet is a collection of networks that are

connected together for exchange of

information. When the computer is connected

to the Internet, it is said to be online.3

This illustration describes the various uses of the Internet.

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To connect to the Internet, you need a:

• Computing device,• A connection device• An Internet Service Provider (ISP).

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TYPES OF INTERNET CONNECTIONS

There are two different types of Internet connections:

1. dedicated Internet connections

2. dial-up Internet connections.

You can choose the type of connection depending on your requirement and budget.

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Type of Connection Dial-up

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WEBSITE

A Uniform Resource Locator (URL) or address is the standard convention for specifying the location of every resource on the Internet.

You have to specify a URL in order to open a resource. This resource can be a document or service.

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The components of a URL

Element Description

http:// Indicates the protocol to be used to access a file.

www Indicates that the Web site is on the Web.

Microsoft Indicates the name of the domain.

.com Indicates the type of domain.

/learning/default.asp Indicates the path of the document.

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HYPERLINK

Pages on the web are interconnected. You connect to other pages by clicking text or graphics that are called hyperlinks.Hyperlinks are underlined words or bordered graphics that have web addresses embedded in them.By clicking a hyperlink, you jump to a particular page in a particular web site. You can easily identify a hyperlink. Hypertext links are of different colour from the rest of the text in a web site. Surfing the web means following hyperlinks to different web pages. As you surf around the web, you may find pages you have read about or seen mentioned on the television.

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USING INTERNET APPLICATIONS FOR RESEARCH AND COMMUNICATION

WEB BROWSER

To use the Web you need a client called an Internet browser.

One of the first Web Browsers was Mosaic developed by Netscape founder Marc Andreeseen and was released by National Center for Supercomputing Applications (NCSA).

A Web browser helps you to view the contents of the Internet and to help you to do mailing and

downloading of software.

Here are some commonly used browsers:

• Microsoft Internet Explorer

• Mozilla

• Netscape Communicator

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USING SEARCH ENGINE

There are millions of documents on the Internet. Those that we access through links are only a

handful. In order to make more Web pages available for us all there are some organisations that

have created and maintained an Internet Search tool that is free for all to use.

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TECHNIQUES TO USE SEARCH ENGINE

Doing a search on Google is easy. Simply type one or more search terms (the words or

phrase that best describe the information you want to find) into the search box and hit

the 'Enter' key or click on the Google Search button.

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