Cloud computing is the next stage in the Internet's evolution, providing the means through which everything — from computing power to computing infrastructure, applications, business processes to personal collaboration — can be delivered to you as a service wherever and whenever you need.
The “cloud” in cloud computing can be defined as the set of hardware, networks, storage, services, and interfaces that combine to deliver aspects of computing as a service.
Cloud computing has four essential characteristics:
The “cloud” in cloud computing can be defined as the set of hardware, networks, storage, services, and interfaces that combine to deliver aspects of computing as a service.
Cloud computing has four essential characteristics:
- Elasticity and the ability to scale up and down,
- Self-service provisioning and automatic deprovisioning,
- Application programming interfaces (APIs),
- Billing and metering of service usage in a pay-as-you-go model.
Cloud computing is offered in different forms:
- Public clouds
- Private clouds,
- Hybrid clouds, which combine both public and private.
Sources - http://www.dummies.com
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