Cloud computing isn’t one monolithic type of offering, but an assortment of services aimed at meeting the various IT needs of an organization.One such service provided via the cloud is infrastructure-as-a-service (IaaS), which delivers virtualized computing resources to organizations typically via the internet.
IaaS is one of main types of cloud services, along with software-as-a-service (SaaS) and platform-as-a-service (PaaS).[ What is cloud computing? Everything you need to know now. | Also: InfoWorld’s David Linthicum explains how to move into a cloud career from traditional IT. | Download the public cloud megaguide PDF: Amazon, Microsoft, Google, IBM, and Joyent compared. ]
In the IaaS model, third-party service providers host hardware equipment, operating systems and other software, servers, storage systems, and various other IT components for customers in a highly automated delivery model.
In some cases, they also handle tasks such as ongoing systems maintenance, data backup, and business continuity.To read this article in full or to leave a comment, please click here

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