Cloud Computing

Cloud computing deals with computing which relies on sharing computing resources. Unlike the traditional computing process, cloud computing uses the unused processing cycles of all computers in a network to solve problems which are too intensive for any stand-alone machine. The term cloud here stands for "the internet" and clud computing thus is "a type of internet-based computing". It provides services like storage, applications and servers to an organization's computers and devices through the internet.

The key features of cloud computing are:

Independence of location and device

With cloud computing users can access systems via a web browser. The nature of the device (PC/ Mobile Phone) or its location is not at all an impediment, as an off-site infrastructure is provided (usually by a third-party) through which you can connect anywhere witht the help of the internet.

Reduced Cost

This feature is one major advantage of cloud computing. In this procedure, the infrastructure is provided by a third party. Thus you do not have to purchase it for one-time or infrequent intensive computing tasks. Also the cost gets automatically reduced as the public-cloud delivery model converts the capital expenditure in to operational expenditure.

Improved productivity and agility

Cloud helps in improving the productivity by allowing multiple users to work on the same data simultaneously. Time is also saved as users do not have to install application software upgrades to their computers nor do they have to re-enter information when fields are matched. Thus along with improved productivity, with the cloud you also get an agile system for your organization.

Elasticity

This is yet another interesting feature of cloud computing. According to the needs of your organization you can either scale up or bring down its use. Therefore you just have to pay for what you use and once your scale up your requirements, it is easy to scale it down as and when you need depending on the needs of your organization.

The popular service models of cloud computing are:

IaaS – Infrastructure as a Service

SaaS - Software as a Service

PaaS – Platform as a Service

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