Living on Cloud 9
Cloud computing is an on-demand delivery of IT capabilities, in which IT infrastructure and applications are provided to subscribers as metered services over networks. Examples of cloud solutions include Gmail, Facebook, Dropbox, and salesforce.com.
Cloud services are delivered using internet technologies, which can include public, private, or hybrid models. Let's look at these briefly next:
- Public cloud services: These are offered by providers such as Amazon, Google, and Microsoft. These services are available to the public and can be used by anyone who registers for an account. The provider manages the infrastructure and applications and makes them available on a pay-as-you-go basis.
- Private cloud services: These are offered by organizations such as IBM, Hewlett-Packard, and Rackspace. These services are used by the organization that owns them and are not available to the public. The provider manages the infrastructure and applications and makes...
