Cloud Computing is…
“The cloud is IT, presented as a service to the user, delivered by virtualized resources that are independent of location.” – 451 Research
Types of Clouds
There are several kinds of Cloud Computing service offerings. Here are the most common ones.
Software as a Service (SaaS):
Software-as-a-service products provide a complete, turnkey application—including complex programs such as those for CRM or enterprise-resource management—via the Internet. Example SaaS tools are Salesforce.com, Zoho.com, Quickbooks Online, Gmail, Flickr, etc. For more information about SaaS, visit Wikipedia.
Platform as a Service (PaaS):
Platform-as-a-service products offer a full or partial development environment that users can access and utilize online, even in collaboration with others. PaaS allows the developer to deliver their applications without worrying about the underlying hardware infrastructure. Typical PaaS application tie into a greater ecosystem, like a social networking site. A sample PaaS offering may be a social networking game that is accessed through the Facebook system. For more information about PaaS, visit Wikipedia.
Infrastructure as a Service (Iaas)*:
Infrastructure-as-a-service products deliver a full computer infrastructure via the Internet. IaaS providers deploy and manage flexible and scalable compute, storage, and network components that enterprises use to run their business and/or deliver their service on. For more information about IaaS, visit Wikipedia.
*Virtacore offers Infrastructure as a Service
Clouds are classified as Single-Tenancy (ST) or Multi-Tenancy (MT). ST clouds are typically private deployments and not shared with other customers. MT clouds are typically shared among two or more customers, including the compute, storage, and network resources. There are pros and cons on each type of cloud. The optimal cloud solution for each customer depends on its specific end-user requirements.