Literacy plus nonsense--the cloud computing (figure)

Some days ago in the forum to see the cartoon, perhaps is the essay painting it, and do not say whether this netizen really understand cloud computing (frankly speaking, I do not know what cloud computing is.) , but the netizen is still very talented, can put his opinion in this form to express, has been very difficult for the valuable.

"I saw more than N of the relevant introduction can not find a good explanation, it should be said I do not understand it."

Who gives a simple explanation?

I looked probably like the network hard disk can upload computer backup and file can also edit the online I what, nothing special ah is not already realized, only think of the big head now is want to put them under the plan,
It's nothing special.
The network hard disk is not cloud computing.
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What is cloud computing?
At first, people used the abacus.

Later, people use computers.

Then again, people have networks.