Powering 28% of the internet, WordPress provides the backend interface for more than 60 million bloggers, entrepreneurs, developers, and enterprise businesses. Given the platform’s wide applications, cloud hosting is a perfect fit for highly trafficked, in-demand websites and online stores. InMotion Hosting, our favorite option for all things WordPress, understandably outperforms competitors in terms of optimized infrastructure, superior management, and ultimate usability:
Cloud hosting costs more than a VPS because you are paying for a lot of hardware, complex networking, and the resulting uptime guarantee. With these plans, you pay for what you use, so costs could be unpredictable due to unknown traffic spikes. Think of it as you would your electric bill. Sure, there is plenty of power available for you to use when you need it, but your bill goes up at the end of the month.
VPS and cloud computing are not mutually exclusive options. You can host your VPS in a virtualized environment. This allows you to convert one physical server into multiple virtual machines, each of which acts like a unique physical device for running both IT resources and web applications in a flexible, instantly scalable and cost-efficient manner.
Cloud hosting sometimes gets confused with a virtual private server, or VPS. Both configurations rely on the virtualization of physical server resources. Although a cloud server can be called a VPS, a VPS is not a cloud server. One of the key differences, aside from the infrastructure configurations, is the payment model — the automation and vast network associated with cloud hosting enables providers to offer cheaper, pay-as-you-go solutions that can be scaled up or down at a moment’s notice.

A cloud server is powerful physical or virtual infrastructure that performs application- and information-processing storage. Cloud servers are created using virtualization software to divide a physical (bare metal) server into multiple virtual servers. Organizations use an infrastructure-as-a-service (IaaS) model to process workloads and store information. They can access virtual server functions remotely through an online interface.
Rather than being hosted on one single instances of a physical server, hosting is delivered on a virtual partition which draws its resource, such as disk space, from an extensive network of underlying physical servers. If one server goes offline it will have no effect on availability, as the virtual servers will continue to pull resource from the remaining network of servers. 
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