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The likes of Google, Amazon, Rackspace, Yahoo, Salesforce and Microsoft are associated with cloud hosting services. For the starters, cloud computing is Internet based services where resources, software, data and information is allocated to various devices on demand. You only pay for what you need and use. These services have given altogether a new meaning to the term virtualization. These computing services are very much like web hosting services. A business or client hires services from the server in terms of platform, software and infrastructure cloud application. By utilizing cloud application such as SaaS or Software as a Service, businesses can eliminate the need of maintenance and support. When SaaS is delivered, customers do not install software on their own computers or run them. With these services, a business gets software access over Internet. The centrally located servers manage and enable operations from customers’ side. As these services are hosted over the Internet, all you may need as a client is computer and Internet access. The cloud layer or architecture can be simple or multilayered given terms like pricing, sharing and management structuring. Cloud hosting services can be of two types and so do their tenancy architecture. These can be categorized as two types of cloud namely public cloud and private cloud. In public cloud, the resources are shared by many clients. Thus, the expenditure reduced whereas the risks manifold. As you are on a shared space, you have no or less control over sensitive data and if there is any kind of data loss, recovery could take ages. Again, reliability is an issue when there is data loss and need of disaster recovery. In private cloud you have the benefits of control, reliability and security of the confidential data. The resources in private cloud are utilized within the firewall of your company. So, you are the one who manage and access the data without having the burden of updating and maintaining it. Nonetheless, when you take cloud computing application such as SaaS or IaaS, you gain on many fronts such as agility, cost efficacy, API and many more. Regardless of your location and the level of browsers or device, you can connect from any part of the world. You are freed from any kind of maintenance hassles and improvements for efficiency.
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