The most popular form of hosting websites is to set up one on servers that are shared with others. In such situations you are sharing the hard drive space as well as the bandwidth with others who are using the same service. In a dedicated server your website has exclusive use of the server and the use of its hard drive to store data, without having to share any of these facilities with someone else.
If any organization does require a lot of space for its web content and data and is also expecting a lot of visitors to its website, its interests will be better served by choosing dedicated servers. Such servers will also ensure a very high degree of security for the website.
Storage space is something that every organization has to give sufficient thought to while deciding on servers. Such space is required for databases, videos, images, blogs and website pages and such requirement can only keep growing as a business expands. A dedicated server allows an organization to have exclusive use of the hard drive on the server. Services who are into web hosting can also arrange to upgrade such storage space if ever the need arises.
In shared servers a website has generally to compete with others for bandwidth for data transfer and this can at times lead to very slow response. When you have a dedicated server, the entire bandwidth is available to you. You no longer have to compete with other sites for the bandwidth. This leads to higher speeds and easier access to the website, which can be an advantage when you are dealing with customers.
Dedicated servers do come with substantial costs attached to them, but the ease of operation and the enhanced security that it does bring with it. You have complete control over all the material that comes on to your server and can thus ensure its security. This control also allows you to install the features and software that you want, without having to bother about the software that can at times becomes a restriction on shared servers.