Cloud Computing, a paradigm of computing is one of the simplest means of access and data storage on the Internet, instead of storing the data in computer hard drive. It is also recognized as a large pool of systems that helps us to stay connected to the public or private networks and provide dynamically scalable infrastructure for data, storage of files and applications.
With the launch of this technology, has significantly reduced the storage of content, delivery, the cost of computation, and application hosting. It has the potential to transform the data center from a capital intensive along with a variable price environment.
According to one of the search industry - Forrester defines cloud computing as an abstract computing infrastructure pools, highly scalable, and managed in a position to host the final customers and billed according to consumption applications. Whereas, the National Institute of Standards and Technology (NIST) has developed the definition of cloud computing as a model for enabling convenient, on-demand access to the network to a shared pool of configurable computing resources (such eg, networks, servers, storage, applications and services) that can be rapidly provisioned and released with minimal management effort or service provider interaction.
The feature of Cloud Computing consists of self-service, in which a customer can request and manage their computing resources. Access to the vast network service allows you to be available for private networks or the Internet. This technology provides a shared resource pool, where the customer draws from a pool of computing resources, usually in a remote data center.
of Cloud Computing Service models
The Cloud Computing services are grouped into three categories - software-as-a-Service (SaaS), Platform-as-a-Service (PaaS) and Infrastructure-as-a-Service (IaaS).
Software-as-a-Service ( SaaS)
In this service model, the cloud-based applications are offered to the customer, as a service on demand. It is a single instance of the service that runs on remote computers "in the cloud", which are owned and managed by others and is connected to the computer of Internet users and, usually, a web browser. Social networking sites like Facebook, Twitter, Flickr, and Google are all examples of SaaS, although users can access the services through any Internet-enabled device.
Platform-as-a-Service ( PaaS)
The Platform-as-a-Service (PaaS) is a model superior tuning software-as-a-Service and provides hardware, network and operation, so that a customer can design your application and software. In order to meet the requirements of applications such as scalability and manageability, a predefined combination of OS and application server operating system is offered by PaaS providers like limited J2EE, LAMP platform (Linux, Apache, MySQL and PHP), etc., for example, at every stage of the process to develop, test and finally host their web sites, web developers can use individual PaaS environments.
Infrastructure-as-a-Service ( IaaS)
Infrastructure-as-a-Service (IaaS) is a computer science Basic and storage capacity, which is provided by a standardized service on the network. This model has made the workload easier to pool Space Center data, storage systems, network equipment, servers, etc. together and make them available. In addition to it, the client can develop and install their own operating systems, software and applications.
deployment models of Cloud Computing
To make available and to deploy applications, companies can choose to Cloud Computing on public, private or hybrid clouds . In order to determine the right cloud path for each organization, Cloud supplements play a vital role.
Public Cloud
In principle, the services provided by a public cloud are offered via the Internet and are managed and owned by companies who use it to provide quick access to reasonable computing resources to other organizations or individuals. Through this deployment model, consumers do not need to buy support infrastructure, hardware or software, which is owned and operated by suppliers.
Private Cloud
In this deployment model, the infrastructure the cloud is only used for a specific organization and is managed by the organization or a third party. While providing greater control of resources and steering clear of multi-tenancy, private clouds are there to exploit the efficiency of the various cloud.
hybrid cloud
This cloud computing deployment model merges both public and private cloud models. A service provider can use third-party cloud providers in all or part of hybrid clouds, and thus increasing the flexibility of computing.
So, for the user of the computer every day, this technology offers a number of options, as well as for large and small businesses. And for organizations and individuals, your Cloud Computing offers the benefits, and the action moves to the interface Flanked by vBulletin more groups of service consumers and providers.
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