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  2. Infrastructure as a service - Wikipedia

    en.wikipedia.org/wiki/Infrastructure_as_a_service

    IaaS services are typically billed as a utility: cost reflects the amount of resources allocated or consumed. Typically, IaaS involves the use of a cloud orchestration technology such as OpenStack, Apache CloudStack, or OpenNebula. It manages the creation of a virtual machine (VM) and decides on the hypervisor (i.e. physical host) in order to ...

  3. Software as a service - Wikipedia

    en.wikipedia.org/wiki/Software_as_a_service

    Comparison of on-premise, IaaS, PaaS, and SaaS. Infrastructure as a service (IaaS) is the most basic form of cloud computing, where infrastructure resources—such as physical computers—are not owned by the user but instead leased from a cloud provider.

  4. Cloud computing - Wikipedia

    en.wikipedia.org/wiki/Cloud_computing

    Comparison of on-premise, IaaS, PaaS, and SaaS Cloud computing service models arranged as layers in a stack. The National Institute of Standards and Technology recognized three cloud service models in 2011: Infrastructure as a Service (IaaS), Platform as a Service (PaaS), and Software as a Service (SaaS). [2]

  5. IT as a service - Wikipedia

    en.wikipedia.org/wiki/IT_as_a_service

    According to The NIST Definition of Cloud Computing, [3] there are three service models associated with cloud computing: infrastructure as a service (IaaS), platform as a service (PaaS), and software as a service (SaaS). The concept of ITaaS as an operating model is not limited to or dependent on cloud computing.

  6. Platform as a service - Wikipedia

    en.wikipedia.org/wiki/Platform_as_a_service

    Public PaaS is derived from software as a service (SaaS), [17] and is situated in cloud computing between SaaS and infrastructure as a service (IaaS). [1] SaaS is software hosted in the cloud so that it does not reside or run on customer computers. IaaS provides virtual hardware from a provider with adjustable scalability. [1] In IaaS, the ...

  7. as a service - Wikipedia

    en.wikipedia.org/wiki/As_a_service

    Payments as a service (PaaS) is a marketing phrase used to describe software as a service to connect a group of international payment systems. The architecture is represented by a layer – or overlay – that resides on top of these disparate systems and provides for two-way communications between the payment system and the PaaS.

  8. Network as a service - Wikipedia

    en.wikipedia.org/wiki/Network_as_a_service

    Network-as-a-Service(NaaS) is a term used to describe the provision of computer networking technology to an organisation as an integrated service.It is related to terms like Infrastructure as a Service (IaaS), Platform as a Service (PaaS), Software as a Service (SaaS), and Software-Defined Networking (SDN).

  9. Recovery as a service - Wikipedia

    en.wikipedia.org/wiki/Recovery_as_a_Service

    Recovery as a service (RaaS), [1] sometimes referred to as disaster recovery as a service (DRaaS), is a category of cloud computing used for protecting an application or data from a natural or human disaster or service disruption at one location by enabling a full recovery in the cloud.

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