One minute to show you the difference between public and private clouds
The significant difference between private and public clouds is the control of the data. In just one minute, the following diagrams will allow you to understand the essential differences between public and private clouds.
The significant difference between private and public clouds is the control of the data.
Enterprises using public cloud services must host data in the cloud server's data center, and the company's control over the data is naturally weakened. Once the data center is lost due to natural disasters, human factors or legal norms, it will cause fatal damage to the enterprise.
Private clouds also have more options for data security and data backup. Public cloud certainly has data security services and data backup capabilities, but the company's control is weak and cannot be in a dominant position.
but
Don't stare at the public or private cloud
The current red man is
"Hybrid cloud" 
On Gartner's 2015 Emerging Technology Curve
Traditional "cloud computing" has disappeared
And the "hybrid cloud" appeared.
and so
Public cloud player and private cloud player
Let’s hurry up.
Working together to create both fish and bear's paw
Hybrid cloud 
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