To put it simply, it can be likened to a super-massive server, armed with a plethora of information which is used by billions of people simultaneously.
The Internet is basically "a network that connects other, smaller networks".
Receiving news from across the world, accessing knowledge resources, and shopping online are simply a click away.
On the other hand, even celebrities are using the Internet effectively for promoting their cause and for keeping their fans happy.
There are innumerable games that can be download, either for a price or for free.
Till then, the term Internet was practically unknown to most people.
However, today, the Internet has become the most powerful tool for people around the world.