I think everyone aware about cloud computing. For those who don't, refer to the picture below.

As you can see, every pieces of device have two-way connection with the Internet. Furthermore, we have database, remote server and clients accessing the same thing. Anything on the Internet, we as a client, can access, amend and use it. In our bleeding edge world, anything must be cloud in order to reduce the dependencies on own self resource and increase reliability of the system. Information sharing is the best when we come into cloud computing.
First of all, let me give you 1 case to ponder upon.







