In today's scientifically advanced and all IT dominated era, cloud computing is the term du jour.
Cloud computing is computing in which large groups of remote servers are networked to allow the centralized data storage and online access to computer services or resources. Clouds can be classified as public, private or hybrid.
As a metaphor for the internet, 'the cloud' is a familiar, but when combined with 'computing', the meaning gets bigger fuzzier. Cloud computing encompasses any subscription-based or pay-per-use service that, in real-time over the internet, extends IT existing capabilities.
In a cloud computing system, there's a significant workload shift. Local computers no longer have to do all the heavy lifting when it comes to running application. The network of computers that make up the cloud handles them instead. Hardware and software demands on the users side decrease. The only thing the user's computer needs to be able to run is the cloud computing systems interface software, which can be as simple as a web browser, and the cloud's network takes care of the rest.
Cloud computing is a typically defined as a type of computing that relies on sharing computing resources rather than having local servers or personal devices to handle applications.
Cloud computing is comparable to grid computing, a type of computing where unused processing cycles of all computers in a network are harness to solve problems too intensive for any stand-alone machine.
The goal of cloud computing is to apply traditional supercomputing, or high performance computing power normally used by military and research facilities, to perform tens of trillions of computations per second, in consumer oriented applications such as financial portfolios, to deliver personalized information, to provide data storage or to power large, immersive computer games. It relies on Restricting sharing of resources to achieve coherence and economies of scale, similar to a utility over a network. At the foundation of cloud computing is the broader concept of converged infrastructure and shared services.
To do this, cloud computing uses networks of large groups of servers typically running low-cost consumer PC technology with connections to spread data-processing chores across them. This shared IT Infrastructure contains large pools of systems that are linked together. Often, virtualization techniques are used to the power of cloud computing.
Cloud computing gas been around for quite some time, and goes as far back as the birth of email. But it's only in recent years that Companies have started renting servers and storage instead of purchasing hardware and running it at huge costs.
And with more organizations-especially those that rely on India's outsourcing infrastructure-transferring some of their IT work into the cloud, companies such as Tata Consultancy services (TCS), Infosys have stepped up to facilitate that shifts. They have positioned themselves as enablers between owners and renters.
India's IT giants are becoming experts at going in early, at planing stage, and defining what their corporate customers ought to be doing to take advantage of emerging technologies. "They are playing to their strength, which is services. Even in the cloud, they are in the services specifically focused on services brokerage", say Arup Roy, research director at Gartner.
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