A virtual server is an accurate option for popular sites that demand plenty of system resources. It is robust enough but simultaneously it is much cheaper than a dedicated web hosting. If the hosting supplier supplies a number of different packages, upgrading from one to the other is also easy and no site migration will be required, hence there will be no downtime as far as the domain names that are kept on the VPS web server are concerned.
A robust physical server is sliced into a number of virtual web hosting servers that copy the behavior of a conventional dedicated machine. There are lots of applications that render this division tenable so that the client obtains a completely operational web server with complete root-level access and ensured resources.
The benefit of purchasing a private virtual web hosting server is that it is totally independent of the other virtual server hosting accounts on the physical server. It can be rebooted, updated, and can even have a different Operating System than those of the rest of the virtual server hosting accounts on that machine. It is indeed like a dedicated web server, but a virtual web hosting server costs only a fraction of the cost of a dedicated hosting machine.
VPS performs like a dedicated server as far as management is concerned since you are granted full root access with an option to reboot the VPS distantly. The virtual private web hosting server shares resources with other Virtual Private Servers that are on the same physical server. This is reflected in the remarkably cheap price, which is several times lower than that of a dedicated server and is in fact more related to shared web space hosting plans in terms of pricing.
To meet the demand for inexpensive, but reliable hosting services, companies commenced a midway website hosting solution - the Virtual Private Server. This is a virtual emulation of a server that behaves precisely like a dedicated servers hosting and is much more powerful than any shared webspace hosting package. On the other hand, as multiple accounts are set up on the same physical server and each client pays for their account, the price for a private virtual hosting server plan is markedly lower than the cost of a dedicated web server.
A VPS is a relatively cheap hosting service, but it is powerful enough to support sites such as a very popular online store or a large company site. As its management is simple, it is the preferred selection of both beginners and capable users.