I find myself confusing to understand the concept of private cloud. If a company has an offshore data-center, and now if the company wants to move into a private cloud, what does the company has to do?
If I am correct, in order to use the term cloud, there should be virtualization. If there is no virtualization, there is no cloud. So is a private cloud, where you virtualize your existing data center? Or is it simply throwing out your existing hardware and purchasing hardware from a cloud provider, so that now all your resources are on the Internet?
And also how does the private cloud differ from virtual private cloud?