Difference between Public Private and Hybrid Cloud

Parameter	Public Cloud	Private Cloud	Hybrid Cloud
Definition	If a cloud infrastructure is made available to general public or a large industry group than it is called Public Cloud.	If a cloud infrastructure is operated solely for an organization than it is called Private cloud.	Composition of two or more clouds (Private, Public, and Community) is called hybrid Cloud. It is the composition of at least one public cloud and at least one private cloud.
Users	Can be used by any internet user on pay per usage basis.	Used by only members of the organization.	It is used by the organizations that are willing to push part of their workloads to public cloud.
Advantage	Good test/development environment for applications that scale too many servers.	Security least is very low because cloud users are very much limited.	Operational flexibility, run mission critical on Private cloud, tests on public cloud.