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Cloud Computing

Cloud computing can be defined as the practice of using a network of remote servers hosted on the Internet to store, manage, and process data, rather than a local server or a personal computer. In simpler words cloud computing is storing and accessing data from the internet instead of a local computer hard drive. The term cloud is used as a metaphor for Internet. There are 5 essential characteristics of Cloud Computing: * On-demand self service * Broad Network Access * Resource Pooling * Rapid Elasticity * Measured Service

1. On-demand Self Service- This is defined as the ability of a user to quickly and easily configure the computing resources without any human interaction from the service provider. So, the user has the control over the features that they want to enable/disable according to their computing needs without filling out forms or emailing the service provider. Hence, also making the features instantly available to the users.

2. Broad Network Access- This characteristic of cloud computing enables the user to access the resources from anywhere they have internet access for example a browser, an application designed for desktop/mobile etc. One very effective implementation of this characteristic can be the mobile applications (iOS/Android apps) which work by communicating with cloud based servers in the back-end.

3. Resource Pooling- The resources of the service provider such as storage, processing, memory, network bandwidth, virtual machines, email services etc. are pooled together to serve multiple users, by securely allocating them on a logical level, so that they can be assigned/reassigned to users according to their demands dynamically.

4. Rapid Elasticity- This characteristic states that additional capacity remains available and accessible on an ‘as needed’ basis to the users. So the

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