Public cloud definition Public cloud is a cloud in which Cloud infrastructure is available to the general public. Public cloud define cloud computing.

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<ul><li> Slide 1 </li> <li> Slide 2 </li> <li> Public cloud definition Public cloud is a cloud in which Cloud infrastructure is available to the general public. Public cloud define cloud computing where dynamically allocated resources are on an on-demand, self-service basis over the Internet, via open API, web apps/web servers, from a service provider.Public cloud is general access to cloud computing. What is public cloud computing Public cloud computing is based on pay as you service. We can take on demands services. Public clouds can also typically be extend much faster and with greater accessibility than on- infrastructure. Public cloud user may pay pay-as-you-go fees or fixed monthly fees for the public cloud services. It is just like a taking service charge remote access as on demand. In Public cloud we can use single platform services on multiple devices. So some time public service cloud is also called Polyservices cloud. There are a lot of public cloud providers available. Example of public cloud is Amazon, Rackspace, IBM etc The examples of cloud computing is fall into the public cloud model because they are, publicly available by definition. Software as a Service (SaaS) offerings such as cloud storage and online office applications are perhaps the most familiar, but mostly available Infrastructure as a development environments, can follow the model as well (may also exist in private cloud). Public clouds are used in enhance for offerings private individuals who are less likely to need the services. </li> <li> Slide 3 </li> <li> Benefit of Public Cloud: Cost effect on service: public clouds combine together greater levels of resource and so can benefit from the largest economies of service scale. The main operation and management of these resources is shared across all of the cloud services components, such as hosts, servers, and storage. We can take monthly payment access service. If I take an example of Tata Sky daily recharge service we can watch channel on daily base subscription. Reliability: Public cloud network are more reliable using virtualization by which resources (servers, networks etc.) are used and hosted internally, the creation of virtualized operating environments means that the network is more reliable to single failures across the physical layer. Virtual partitions can, for example, we can use our resources from the remaining unaffected servers. Flexibility: Services of Cloud like IaaS, PaaS and SaaS available on the market which follow the public model of cloud and that are ready to be accessed as a service from any internet connected device. These services can fulfill most computing requirements and can deliver their benefits to private and enterprise clients and Multihome users. Businesses can even integrate their public cloud services with private clouds, where they have to perform sensitive business functions, to create secure hybrid clouds Location independence: Public clouds are location independent. User can take access from any remote location. Other types of clouds are private, personal and hybrid </li> </ul>


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