It starts with a simple idea, for the consumer at least. How about putting your videos, photos, files and digital stuffs on the internet?
The advantage of this, is that you can share photos with your friends on the internet, or showing it on your smartphone and you can access your work files from office at home. Simply put, you can access to all your digital stuffs anywhere in world as long as there is internet access.
You can watch this simple video that best describe what is Dropbox.
On a small scale, you can easily imagine the usefulness of this new trend but if you worked in a company with huge computing facilities and data center, you can see how the cloud is going to change the future of computing.
You can watch this simple video that best describe the transformation toward Cloud computing.