Cloud computing consists of shared pools of computer system resources and services which can be provisioned over the Internet. Cloud computing usually shares resources in order to achieve coherence and economies of scales.
The main aim of cloud computing is to permit users to benefit from all the technologies they can use without the need to have a deep knowledge about them. As well as this, cloud computing aims to cut costs and simplify the interaction between IT and the user.
The main benefits of cloud computing are: increase the organisations’ agility, reduce the costs, enable the users to access the system regardless their location, easy maintenance, resource pooling, increase productivity among users and high level of security.
As well as this, there are different types of cloud computing: public, private and hybrid. A public cloud computing is owned and operated by third-party cloud service providers and can be accessed by every user through the Internet. A private cloud computing is a cloud that belongs to a single business or organisation and can be accessed by specific people. Finally, a hybrid cloud computing combines both public and private cloud.
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