This system provides a very low-cost program (comparatively) to run multiple client systems. This method is used by many a web hosting company so people around the world enjoy very cheap web hosting services. Instead of requiring one expensive computer as a dedicated server, a computer can serve many websites sharing the total cost of a dedicated physical machine.
You might ask if sharing a server with different websites could affect the performance of your website? The answer, in most cases, is no. In fact, having a dedicated virtual server allows you some level on insurance against losing resources. If you all accessed the same physical machine, one site could use up all of its resources, leaving you high and dry!
Web hosting can utilize the virtual server in almost every service provided. Hosting companies sell the server space. They sell it to web developers, individuals, businesses and anyone else that needs a web server but does not want to provide their own. Larger clients may have a virtual machine dedicated entirely to them, or even a virtual computer. In this way, small hosting companies can buy server space from larger hosting companies.
One of the attractive aspects of virtualization is that if one virtual server crashes, it won't make the rest of the virtual machines in the computer shut down. This is a critical aspect of Internet business, the idea of 24-hour uptime and availability. If you depend on your website for ongoing revenue and cannot afford to lose any time, make sure you speak to your hosting company about their virtualization and protections against downtime.
Virtual servers are indistinguishable from physical servers, but the make it much less expensive for the average person to own and operate a website. Since they allow a great measure of protection against data loss and site downtime, their adoption is certain to continue as the demand for internet exposure grows.
