Private Cloud

The massive growth of IT leads to performing computational tasks anywhere and anytime. Also, it is necessary for clients to do heavy computing tasks without a need of expensive hardware and software, by using network servers. Cloud computing is the latest technology, which can answer to these requirements. According to the national institute of standards and technology (NIST), “cloud computing is a model for enabling ubiquitous, convenient, on-demand network access to a share pool of configurable computing resources (e.g. networks, servers, storage, applications, and services) that can be rapidly provisioned and released with minimal management effort or service provider interaction.”
Cloud computing is a model based on large scale computer networks such as internet, which is a new way to supply, consume and deliver IT services such as hardware, software, data and other subscriber resources. In other words, Cloud computing offers solutions for providing IT services to common industry. This means that the on-demand delivery of scalable and flexible IT resources is provided to clients.
In cloud computing, there is an abstraction layer between technical details and clients. For instance, application service provider provides commercial applications, by web browser or other related software to clients. Applications and information are stored in servers, and then they will be provided by clients’ demands. Also, details are hided from clients and they won’t need to control the infrastructure technology of cloud computing.
Cloud computing consumers do not own physical infrastructure of cloud, rather to avoid the costs, they would lease it from third party providers. In this way, they would only pay for the resources that they consumed.
Computational sharing between multiple clients leads to better productivity because servers won’t be idle and this will reduce the costs as well. Even though, the speed of expansion and production will increase, the drawback of this method is that the processing usage of computers is higher because customers don’t need to calculate and determine their maximum traffic peak.

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