Cloud computing is the latest rage in the Internet's development. There are many different definitions of what cloud computing is. In a broad sense, it can be defined as something that happens outside the firewall.
Cloud computing in our definition eliminates the need to install and run the application on the user's computer itself and simplify maintenance and support. Instead of having to develop internal systems, or must adjust third-party business solutions, cloud computing services provides a flexible environment with a much lower initial cost.
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Cloud computing is a set of hardware, network, storage, services, and interfaces that combine to provide different aspects of computing as a service. Cloud services include the delivery of software, infrastructure, and storage over the Internet. It can be delivered whenever and wherever users need a particular service.
Service can be a separate component or complete delivery platform is based on user requests. There are four essential characteristics of cloud computing. They include the flexibility and ability to scale up and down, an application programming interface (API), the determination and automatic billing, and service usage metering in a model pay-as-you-go.
The cloud has several participants. Among them are business managers who take responsibility for the authority of data or services living in a cloud. Cloud service providers should provide predictable and guaranteed levels of service and security for all of their constituents. Cloud service providers must take responsibility for cloud assets and maintenance. The service requester is the second user.