Prepared by: Muhammad Hafizuddin bin Mustafa
Cloud                         ComputingCloud computing describes computation, software, data access, and storageservices t...
Software as a Service (SaaS)Platform as a Service (PaaS)Infrastructure as a Service (IaaS)
Cloud application services or "Software as a Service (SaaS)" deliver software as aservice over the Internet, eliminating t...
 Cloud platform services or "Platform as a Service (PaaS)" deliver a computing   platform and/or solution stack as a serv...
 Cloud infrastructure services, also known as "Infrastructure as a Service   (IaaS)", delivers computer infrastructure - ...
Cloud computing
Cloud computing
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Cloud computing

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What is cloud computing

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Cloud computing

  1. 1. Prepared by: Muhammad Hafizuddin bin Mustafa
  2. 2. Cloud ComputingCloud computing describes computation, software, data access, and storageservices that do not require end-user knowledge of the physical location andconfiguration of the system that delivers the services.Cloud computing is a natural evolution of the widespread adoption ofvirtualization, service-oriented architecture, autonomic and utility computing.Details are abstracted from end-users, who no longer have need for expertise in,or control over, the technology infrastructure "in the cloud" that supports them.Cloud computing is a model for enabling convenient, on-demand network accessto a shared pool of configurable computing resources (e.g., networks, servers,storage, applications, and services) that can be rapidly provisioned and releasedwith minimal management effort or service provider interaction.
  3. 3. Software as a Service (SaaS)Platform as a Service (PaaS)Infrastructure as a Service (IaaS)
  4. 4. Cloud application services or "Software as a Service (SaaS)" deliver software as aservice over the Internet, eliminating the need to install and run the application onthe customers own computers and simplifying maintenance and support. Peopletend to use the terms ‘SaaS’ and ‘cloud’ interchangeably, when in fact they are twodifferent things. Key characteristics include:•Network-based access to, and management of, commercially available (i.e., not custom) software•Activities that are managed from central locations rather than at each customers site, enabling customers to access applications remotely via the Web•Application delivery that typically is closer to a one-to-many model (singleinstance, multi-tenant architecture) than to a one-to-one model, including architecture, pricing, partnering, and management characteristics•Centralized feature updating, which obviates the need for downloadable patches and upgrades.
  5. 5.  Cloud platform services or "Platform as a Service (PaaS)" deliver a computing platform and/or solution stack as a service, often consuming cloud infrastructure and sustaining cloud applications. It facilitates deployment of applications without the cost and complexity of buying and managing the underlying hardware and software layers.
  6. 6.  Cloud infrastructure services, also known as "Infrastructure as a Service (IaaS)", delivers computer infrastructure - typically a platform virtualization environment - as a service. Rather than purchasing servers, software, data- center space or network equipment, clients instead buy those resources as a fully outsourced service. Suppliers typically bill such services on a utility computing basis and amount of resources consumed (and therefore the cost) will typically reflect the level of activity. IaaS evolved from virtual private server offerings. Cloud infrastructure often takes the form of a tier 3 data center with many tier 4 attributes, assembled from hundreds of virtual machines.

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