What is the difference between private cloud and public cloud?

Question

What are the differences between private cloud and public cloud ?

Please define both and giving examples with usage.

Answer 1

A public cloud is offered as a service via web applications/web services( usually over an Internet connection). Private cloud and internal cloud are deployed inside the firewall and managed by the user organization.

There is another type of cloud, hybrid cloud. A hybrid cloud environment consisting of multiple internal and/or external providers will be typical for most enterprises.

You will get more understanding here.

Answer 2

The same as the difference between an intranet and the internet. A private cloud is one set up for a specific group or organisation and usually isolated from the big bad world (behind firewalls and such).

A public cloud is, well, public, out on the internet proper.

For example, a certain big company I know does cloud computing but only using servers they control. It gives them the same benefits as public cloud computing but with more control and less security worries.

They also do public cloud computing but they wouldn't be comfortable to allow control or access to their more precious data to be at the whim of anyone else.