1. what is the internet? what is needed to connect to the internet? what is needed to connect to the...

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What is the Internet?What is needed to connect to th

e Internet?The World Wide Web Criteria to evaluate websitesBrowsing and searchingGlossary

What is the Internet?What is needed to connect to th

e Internet?The World Wide Web Criteria to evaluate websitesBrowsing and searchingGlossary

ContentContent

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DefinitionThe Internet is a worldwide computer network, consisting of computers and networks that are linked using telephone lines, undersea cables,

satellite or microwave for the purpose of communication and sharing of resources.

Every computer that connects to the Internet or in a network must have its own unique IP (Internet Protocol) address that currently consists of 4 sets of digits separated by dots.

What is the Internet?What is the Internet?

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What is needed to connect to the Internet?What is needed to connect to the Internet?Computer / other Internet-enabled device

Internet Service Provider

Internet connection

Wired connection – ADSL

Wireless connection– Cellular technology3G

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ADSL connection services have two different speed specifications:

What is needed to connect to the Internet?What is needed to connect to the Internet?

512 Kbps / 128 Kbps

1Mbps / 256 Kbps

Download speed

Upload speed

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The costs = monthly ISP cost + line rental

Access the Internet & phone calls at the same time.

Check for availability of serviceISPs offer different data packages

What is needed to connect to the Internet?What is needed to connect to the Internet?

ADSL

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Freedom of Internet connectivity without having to have an ADSL line installed

Mobile access 3G modem or cellphone is used to

connect your computer to the cellular network for Internet access.

What is needed to connect to the Internet?What is needed to connect to the Internet?

Wireless connections

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The World Wide Web (WWW) The World Wide Web (WWW) The World Wide Web is a service that runs on the

Internet and consists of a vast collection of interlinked, interactive documents stored on computers all over the

world, accessed via the Internet.

Website -related web pagesHome page – 1st page of web site

Web page – electronic document on Web

Hyperlink– built-in connection to another web page

Web server – website must be hosted here8

The World Wide Web (WWW) The World Wide Web (WWW) URL or web address

Uniform Resource Locator (URL)

Remember that an IP address is a numerical address that uniquely identifies a computer either on a

network or on the Internet.

The word protocol means a rule for communication.

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Network Protocols Network Protocols

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Format of URLsFormat of URLs

Types of websitesPortal website

• Selection of Internet services from one convenient location• Many are also Internet Service Providers who offer some of these services on their sites.

The World Wide Web (WWW) The World Wide Web (WWW)

Types of websitesNews website• Current events, news, sport, weather and exchange rates.

The World Wide Web (WWW) The World Wide Web (WWW)

• Many magazines and newspapers maintain websites that contain summaries of articles from the printed version and even articles not found in the printed version

Informational website• Most government institutions have an informational website.

• Census and tax information as well as factual information that can be used for research purposes.

Types of websites

The World Wide Web (WWW) The World Wide Web (WWW)

Business or marketing website• Information about selling a product or service.

• Examples include: Woolworths, Pick and Pay, Kulula, SAA, Kalahari.net and Telkom

Types of websites

The World Wide Web (WWW) The World Wide Web (WWW)

Personal website• Anyone can develop and maintain their own personal website to share interests, hobbies and life experiences with the world.

• Most people these days are using a blog or a social networking site for their personal website..

Types of websites

The World Wide Web (WWW) The World Wide Web (WWW)

WikiA wiki is a website that allows for the collaborative editing and creating of the content of web pages

Types of websites

The World Wide Web (WWW) The World Wide Web (WWW)

Educational website

Educational websites offer ways of formal and informal learning by means of tutorials and simulations.

Types of websites

The World Wide Web (WWW) The World Wide Web (WWW)

Entertainment websiteAn entertainment website offer all forms of entertainment such as online videos, music, sport, gaming and much more.

Advocacy websiteThis type of website describes an idea, opinion or cause and usually presents the views of a particular group or association.

Types of websites

The World Wide Web (WWW) The World Wide Web (WWW)

Web application website.A web application is any application that is

accessed over the Internet and is not stored on your local computer.

Types of websites

The World Wide Web (WWW) The World Wide Web (WWW)

Content aggregatorA website or application that gathers different web content (such as news, weather, movie reviews, stock prices, etc.) from many different online sources• and displays it on its own website OR• distributes it (RSS documents are called news feeds, channels, web feeds or just feeds.)

Types of websites

The World Wide Web (WWW) The World Wide Web (WWW)

RSS

RSS stands for Real Simple Syndication

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Activity 1

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Criteria to evaluate websitesCriteria to evaluate websites

Most important is to cross-

reference information using

more than one site.

What is a web browser?

A web browser is a software application that allows one to view and explore web pages on the Web either via hyperlinks by typing the address in the address bar of the web browser.

Browsing and Searching Browsing and Searching

Most web browsers have the following features:

address bar

search bar

back button forward button

stop button

home button

tabbed browsing

favoritesprint refresh, reload

Browsing and Searching Browsing and Searching

What is a search engine?

A search engine is a program that is used to search for documents located on the Internet by using keywords or phrases entered by the user when looking for information.

diamond

Browsing and Searching Browsing and Searching

Tips for successful searching

Step 1: Decide exactly what you want to find.Step 2: Identify keywords.

Step 3: Use synonyms.

Step 4: Check your spelling.

Step 5: Use advanced search options

Browsing and Searching Browsing and Searching

RememberGive credit where it is due

Acknowledge a website source

Meevis, Hans. Jewellery Gallery. April 2011. [http://www.meevis.com/jewelry-gallery-0601.htm] 21/05/2011.

Author’s surname, name (if known).

Title of website.

Date on which the website was posted or updated.

[URL]

Date on which the website was visited by you.

Browsing and Searching Browsing and Searching

Searching for images

To save a picture

Save Picture As and choose the location you wish to save the picture to.

ORcopy the picture and paste it in an application

Browsing and Searching Browsing and Searching

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Activity 2

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Activity 3Understand and apply

GlossaryGlossary