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  1. 1. Cloud ComputingCloud computing is an emergingcomputing technology that uses theInternet and central remote servers tomaintain data and Applications´
  2. 2. Benefit• You don’t have to own the hardware• You don’t have to own the Software• Cost control• Agility/flexibility of technology• Real time information and immediatefeedbackWorkAnywhereat anytimeCollaborationSharingWorkwhereveryou are
  3. 3. Benefits• Increase IT responsiveness and efficiency.• Reduce capital expenditures and operationaloverhead.• Provide greater business flexibility through anon-demand, pay-as-you-go model that scaleswith your business.• Get more choice in providers — use in-houseor third-party vendors.• Free up IT resources for innovation
  4. 4. What is Cloud ComputingA style of computing where massively scalable(and elastic) IT-related capabilities are provided“as a service” to external customers usingInternet technologies.
  5. 5. DISA’s Components to CloudComputingPlatform-As-A-Service (PaaS)Infrastructure-As-A-Service (IaaS)Software-As-A-Service (SaaS)
  6. 6. Platform-As-A-Service (PaaS)It is a software development and hostingenvironment made up of development tools,databases, middleware and infrastructuresoftware.
  7. 7. Infrastructure-As-A-Service (IaaS)It enables your system administrators anddevelopers to self-provision the compute,storage and network resources they need todeploy and run applications and operatingsystems
  8. 8. Software-As-A-Service (SaaSIt gives your users web access to applicationshosted on a service providers infrastructure. Awide range of applications can bedelivered through a SaaS model, such ascustomer relationship management,collaboration, email and enterprise resourcemanagement.
  9. 9. Cloud Structures• Private clouds, whether operated and hosted by yourenterprise IT department or by an external provider, are forthe exclusive use of your organization.• Public clouds are open to any number of organizations andindividual users on a shared basis. Using a public cloudminimizes your initial capital investment and combinesagility and efficiency with massive scalability.• Hybrid clouds link private and public clouds, providingaccess to extra resources when the private cloud hitsmaximum utilization. Or, a hybrid cloud might splitcomputing by tier between private and public clouds. Forexample, the database may reside in the private cloudwhile the application server is located in the public cloud.
  10. 10. Structure