Internet and the World Wide Web

di Carotenuto Francesca

The Internet is a worldwide network of connected computers. It was originally designed for the US Department of Defense in the late 1960s as a way to communicate if all the other lines failed.
The Internet world is immense and is always changing; it expands every second and it is estimated to double in size every 11 months.
A modem inserted in a computer or a mobile phone converts data into electronic signals and sends them to your service provider.
The service provider launches the information onto the Internet. The package is sent from one network to another via a special device called a ‘router’.
It examines each packet and decides on the best route to send it to its final destination.
The package can pass through several routers which could be in different countries before the message reaches the final receiver.
The World Wide Web(WWW) was invented in 1989 by the Londoner Tim Berners-Lee.
It transformed the Internet by greatly simplifying the process of searching for, accessing and sharing information making it more accessible to a non-technical audience.
As the Web’s popularity rose, a new industry emerged to create software and content for the Web. This made the Web more attractive for users and encouraged more companies to provide Internet access.
In 1994,there were only 500 Web sites worldwide; today the Web has almost three billion pages and it is estimated to double every 53 days. It now contains an endless variety and quantity of information. The information comes in all forms.
Amongst other things, a Web navigator can shop for things, listen to music, watch a film, learn a language, enter virtual chat rooms or create a new Web site.