THE INTERNET

M4 Computing

The Internet

A quick introduction to the internet.

What is the internet?

What do we use the internet for?

The Internet

The Internet is a worldwide, publicly accessible network of interconnected computer networks that transmit data. It is a "network of networks" that consists of millions of smaller domestic, academic, business, and government networks, which together carry various information and services, such as electronic mail, online chat, file transfer, and the interlinked Web pages and other documents of the World Wide Web.

History 1969 - The first connection is made to the internet's

military network, ARPANET. ARPANET was intended to be America's bomb-proof communications network at the height of the Cold War.

1972 - Bolt Beranek and Newman computer engineer Ray Tomlinson invent email by changing an internal messaging program and extending it to use the ARPANET to send messages between sites.

1973 - University College of London is one of the first international connections to ARPANET.

1976 - The Queen sends an email from England. 1982 - Scott Fahlman starts smiley-culture by

suggesting using the :-) and :-( smileys to send emotions in emails.

History

1988 - The first internet worm is unleashed by Robert Morris. It infects about 6000 computers.

1989 - Tim Berners-Lee and the team at CERN invent the World Wide Web.

1993 - Early web browsers Nestcape and Mosaic are created.

1995 - Jeff Bezos launches Amazon.com, an online bookseller that begins ecommerce.

1995 - eBay is launched to enable internet users to trade with each other.

1998 - Google arrives. It creates a ranking system that uses links to assess a website's popularity.

Browsers

A web browser is a software application which enables a user to display and interact with text, images, videos, music and other information typically located on a Web page at a website on the World Wide Web or a local area network.

Can you give me 3 examples of Internet Browsers you have used?

Web Address

Any website has a URL (Unique Resource Locator) or web address. This is commonly known as the Domain Name of the website.

URL: http://www.yahoo.net/index.html Domain name: www.yahoo.net Registered domain name: yahoo.net

Web Address

Web addresses can only use letters, numbers, underscores and dashes.

A website must have a top level domain name, for example: .com .th .net .asia .org .ac

Who uses the Web?

What do you think are the most common languages used on the Web?

Have a guess at the top 5:1. 2. 3. 4. 5.

Who uses the Web?

After English (30% of Web visitors) the

most-requested languages on the World

Wide Web are: Chinese 14%, Japanese 8%, Spanish 8%, German 5%, French 5%, Portuguese 3.5%, Korean 3%, Italian 3% Arabic 2.5%

By continent, 36% of the world's Internet users are based in Asia, 29% in Europe, and 21% in North America.

Web Search Engines

A Web Search Engines is a search engine used to find information located on the World Wide Web.

Task Today Presentation time! You will work in groups of 3 preparing a PowerPoint

presentation about an Internet subject. You are going to teach the rest of the class about

this subject. You will complete today and every member of each

group will present at the beginning of next lesson. I want you to ask the group presenting questions

about their subject! Remember: Don’t read from the screen, read from

your notes!

Task today

Social Networking Web Messengers Google Wave Web 2.0 Twitter Skype Facebook Blogging

Videos on the Net YouTube World of Warcraft 2nd Life Wikipedia Digg Music on the Net Internet Piracy

Task Today

Subjects you may be able to talk about in your presentation: Description – What is it? History Software/ Hardware Who uses the product? Why is this product useful? Pictures Examples

Task Today

I want your completed presentation uploaded BEFORE August 12th.

You will present at the beginning of our next lesson

Thank you!