Cloud Computing - What is ?

 

 

Definition of Cloud Computing

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Introduction:	Cloud Computing is a technology based on Internet system that provides remote data centers to manage information services and applications. In its simplest form, cloud computing consists of shared computing resources that are virtualized and accessed as a service, through an API. It is a place where apps or data are accessible on the Internet instead of on a single computer or network. It allows individual users or companies to administer files, information and applications without installing specific software on their computers but just having Internet access. Examples of cloud-based services include data storage, online payment and accounting software. It’s likely that we are utilizing the cloud without even knowing it, as some small business tools that are cloud-based include Freshbooks,Dropbox,Doodle etc.
Simple Example:	Let's say a person X is holding an important position in a corporation. His particular responsibilities include making sure that all the employees have the right hardware and software they need to do their jobs. Buying computers for everyone isn't enough he also have to purchase software or software licenses to give employees the tools they require. But whenever there is a new hire, person X has to buy more software or make sure the current software license allows another user. It is so stressful for the person X because of huge pile of money. But now there is an alternative for the persons like X. Instead of installing a set of software for each computer, we would only have to load one application. That application would allow workers to log into a Web-based service which is going to hosts all the programs the user would need for his or her job. Remote machines owned by another company would run everything from e-mail to word processing to complex programs. Its called cloud computing and it could change the entire computer industry.
Working Process:	In a cloud computing system, there is a significant workload shift. Local computers no longer have to do all the heavy lifting when it comes to running applications. The network of computers that make up the cloud handles them instead. Hardware and software demands on the user's side decrease. The only thing the user's computer needs to be able to run is the cloud computing system's interface software, which can be as simple as a Web browser and the cloud's network takes care of the rest. We have already used some form of cloud computing, if anyone have an e-mail account with a Web-based e-mail service like Hotmail, Yahoo! Mail or Gmail, then he/she certainly had some experience with cloud computing. Instead of running an e-mail program on our computer, we log in to a Web e-mail account remotely. The software and storage for our account doesn't exist on our computer rather it's on the service's computer cloud. There are certainly lots of benefits to cloud-based services. Take data storage, for example. By storing data on the cloud, we don’t have to worry about purchasing storage devices or backing up our data ourself.The cloud applications are low in cost and are very easy to use.
Statistics:	In late 2011 TCS conducted an extensive study on how 600+ large companies use application in the "Cloud" and produced the statistics : Cloud Application(A Minorty) US - 19% Europe - 12% AsiaPacific - 28% LatinAmerica - 39% Ratio Expected Greatly by 2014 US - 34% Europe - 24% AsiaPacific - 50% LatinAmerica - 56%
Future Scope:	Today business leaders are using the cloud within their enterprise data centers to take advantage of the best practices that cloud computing has established, namely scalability, agility, automation, and resource sharing. By using a cloud-enabled application platform, companies can choose a hybrid approach to cloud computing that employs an organization’s existing infrastructure to launch new cloud-enabled applications. This hybrid approach allows IT departments to focus on innovation for the business and hence reducing both capital and operational costs and automating the management of complex technologies. The service provider having the infrastructures of cloud computing for the different companies include IBM, Amazon, Microsoft, Google etc. Finally, we can consider this technology offers a more efficient use of resources such as storage, memory, processing and bandwidth because of the control applied to ensure issues such as high availability, security and quality.