Types of cloud computing

Cloud Computing Types: 

1. Public Cloud, Public cloud or external cloud describes cloud computing in the traditional mainstream sense, whereby resources are dynamically provisioned on a fine-grained, self-service basis over the Internet, via web applications/web services, from an off-site third-party provider who shares resources and bills on a fine-grained utility computing basis.
2. Hybrid Cloud, 
   A hybrid cloud environment consisting of multiple internal and/or external providers "will be typical for most enterprises".
3. Private Cloud,
   Private cloud and internal cloud are neologisms that some vendors have recently used to describe offerings that emulate cloud computing on private networks.