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Cloud computing TL;DR

Cloud computing: Is the on-demand delivery of IT resources over the internet with pay-as-you-go pricing.

On-demand delivery: indicate that the cloud has the resources you need, when you need them. You don't need to tell us in advance that you're going to need them.

Deployment models for cloud computing

  1. Cloud-based deployment: You can migrate existing applications to the cloud, or you can design and build new applications in the cloud.
    1. Run all parts of the application in the cloud.
    2. Migrate exiting applications to the cloud.
    3. Design and build new applications in the cloud.
  2. On-premises deployment: It is also known as a private cloud deployment. In this model, the resources are deployed on premises by using virtualization and resource management tools.
    1. Deploy resources by using virtualization and resource management tools
    2. Increase resource utilization by using application management and virtualization technologies
  3. Hybrid deployment: Cloud-bases resources are connected to on-promises infrastructure.
    1. Connect cloud-based resources to on-premises infrastructure
    2. Integrate cloud-bases resources with legacy IT applications.

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