types of clouds

Private cloud:  in private cloud, the infrastructure is generally operated for an organization but it is usually managed by the organization or a third party.

Community cloud:  the infrastructure of cloud is shared among various organization but finally supports a specific community is called community cloud. These several organisation  shared a common concerns that include mission, policy and procedures, security requirements and compliance considerations. It is also managed by the organisation or a third party.

Public cloud:  when an organization owned and sell infrastructure of cloud services to the general public or a large industry group this cloud is called public cloud.

e.g. now days we are using internet from different organizations. 


Hybrid cloud: when the organization’s infrastructure is made up of two or more clouds and they are bound together by standardised or proprietary technology to release data and application between clouds

Reference:

IT Industry Innovation Council 2011, Cloud Computing – Opportunities and Challenges, 11 October 2011,

(http://www.innovation.gov.au/Industry/InformationandCommunicationsTechnologies/ITIIC/Documents/CloudComputingOpportunitiesandChallenges.pdf)