Introducing the Internet and The Web

Computer ConceptsUnit A

What Is Internet

Introducing the Internet and The Web

• How can I use the Internet to communicate with my friends around the world?– Electronic Mail (email)– Chat group– Instant Messaging (IM)– Voice Over IP (VoIP)

Introducing the Internet and The Web

• What is a Electronic Mail (email) ?– Most Popular way of communication.

Introducing the Internet and The Web

• What is Chat Group?– Consist of several people who connect to the

Internet and communicate in real time by typing comments to each other.

Introducing the Internet and The Web

• What is Instant Messaging (IM)?– IM allows you to send text messages, images, and

hyperlinks back and forth to another person instantly.

Introducing the Internet and The Web

• What is Voice Over IP (VoIP)?– Allows voice conversation to travel over

the Internet.– Requires special software at both ends of

the conversation.– Uses a headset with a microphone.– Offer video communication. Ex: Skype.

Introducing the Internet and The Web

• How else can I use the Internet to stay in touch with my friends?– Online social Network– Examples:• Linkedln• MySpace• Facebook

Online Social Network

Introducing the Internet and The Web

• Example:– Recycling blog

• What is a bolg?– Is a personal journal that can include not only text

but also images and videos.– The word blog comes from Web Log.

Introducing the Internet and The Web

• Is the Web the same thing as the Internet?– Web short for World Wide Web– Is a collection Web pages that are interconnected

through the use of hypertext or links.– Web page can include text, photos, videos,

animation, and sounds.

Introducing the Internet and The Web

• How do I view a Web page?– Use a program called browser.– Examples:

Firefox

Internet Explorer

Safari

Introducing the Internet and The Web

• Exercise:– Put the following labels to the picture that you

have.

• How do I navigate a Web site?– Navigation bar– Browser buttons

Address box URL picture

Hyperlink text back button

forward button home page button navigation bar

Introducing the Internet and The WebSearch Site

Key wordSearch Engine

Introducing the Internet and The Web

• How do I find information on the Web?• Search site:– Provides a variety of tools to help you find information on

the Web.• Keyword:– Any word or phrase that you type to describe the

information hat you are trying to find.

• Search engine:– Search site uses search engine to provide a list with links

to Web pages.

Introducing the Internet and The Web

• What is URL?– Every webpage has a unique address– URL stands for Uniform Resource Locator– A URL NEVER contains a space– Example:• http://www.nps/yose/index.htm

Web protocol

Web server Name

Folder Name

Document Name and file

extension

Introducing the Internet and The Web

• What does it mean when I see http:// in the Address box?– HTTP: Hypertext Transfer Protocol– Communication standards used t transport Web

pages over the Internet.• What does it mean when I see https:// like

https://mail.iat.ac.ae

Thank you

• Questions !!!