Provided by: Institute of Electrical & Electronic Engineers
Date Added: Dec 2011
Cloud computing is a model enabling any convenient, on-demand network to maintain access to a shared pool of configurable resources (e.g., networks, servers, storage, applications, and services) that can be rapidly provisioned and released with minimal minimum of management effort or service provider interaction. Cloud computing has five essential characteristics; they are: on-demand self-service, broad network access, resource pooling, rapid elasticity and measured service. Along with three service models: Cloud Software as a Service (SaaS),Cloud Platform as a Service (PaaS) and Cloud Infrastructure as a Service (IaaS).And there are four deployment models, private cloud, community cloud, public cloud and hybrid cloud.