When it comes to hosting, cloud architecture refers to using an independent server for every single aspect of the Internet hosting service. Such a configuration results in improved performance because one machine will be used only for file storage, a different one just for running databases, and so on, thus different system processes will not run on the same machine. This will decrease the probability of system errors significantly and will allow your Internet sites to operate faster, not mentioning the higher uptime. When you're looking for this type of service, you should make certain that you will really receive it as many companies advertise cloud hosting plans, yet the control panels they use are not designed to work in a true cloud and can function only on one server. The issue with using a single machine is that in case one service crashes or generates high load, the whole server will most likely go offline, so your Internet sites will no longer be accessible.