Week 1
1. Introduction
How can businesses use internet
To Advertise
To Communicate
To Entertain
To Inform
To Publish
To Recruit
To Research
To Sell
To Support
To Train
It is predicted that users will use the internet in the near future to do all their businesses such as
On-line buying
Information search
You need to know how servers and internet service providers link together
And how these links conform to different protocols
2. How the internet works
Twenty or thirty years ago you could walk into a public library to find information on almost any subject you wanted
Nowadays
We can sit down at practically any computer,
Almost anywhere on the planet, and
Access an online information library far more powerful than any public library on Earth
The World Wide Web
The Web was invented less than 20 years ago
Has been a huge popular success
One of the greatest inventions of all time
2.1 What is difference between internet and the web?
Common mistake to confuse the worldwide web (WWW) and internet
Internet existed for over 50 years
It is the “web” that makes internet important to use
The basic techniques enable computers to talk to each other
2.2 Internet
Internet made up of thousands of networks worldwide
No one in charge of Internet - No governing body
Internet backbone owned by private companies
The word internet come from – Interconnected networks
The Internet is a worldwide network of computers
Linked mostly by telephone lines
The Web is just one of many things (called applications) that can run on the Internet
When you send an email, you're using the Internet
When you chat to someone online, you're most likely using the Internet too
When you update a blog or Google for information to help you write a report, you're using the Web over the Net
2.3 What does the internet do?
The Internet has one very simple job: to move computerized information (known as data) from one