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As an alternative to the three tiered classification of cloud based services - Infrastructure as a Service (IaaS), Platform as a Service (PaaS) and Software as a Sevice (SaaS) - cloud computing can also be classified based upon how the underlying networks are implemented and accessed by the client. The following article provides and overview of the two principle models Public and Private Clouds.

A guide to all things cloud hosting with news and advice on topics such as private vs public cloud models, IaaS & PaaS and Virtual Data Centres

Security is often listed as one of the challenges to overcome with cloud computing. There can, though, be a number of security benefits, in particular when it comes to public cloud.

Cloud hosting services provide hosting for websites on virtual servers which pull their computing resource from extensive underlying networks of physical web servers.

The final instalment of this trio of articles looks at the features of the two cloud server deployment models, public and private, as well as discussing how they can deliver real cost savings to their customers.

Infrastructure as a Service (IaaS) is one of the three fundamental service models of cloud computing alongside Platform as a Service (PaaS) and Software as a Service (SaaS).