A dedicated server is far more reliable and secure than a shared hosting account which utilize shared resources between customers. A dedicated server is reserved with 100% of the resources allocated to the client. This means that no two customers will share Internet connectivity, hardware, disk space, etc. This type of service is designed to allow 100% up-time and enterprise level clients can rest assured that the service is available to them without any compromise. Mission critical applications also require dedicated servers to be backed by sophisticated and powerful, fully redundant, infrastructure which sets data centers apart from traditional computer servers in an office environment. The cost associated with dedicated servers varies depending upon the infrastructure deployed, but is almost always more economical than purchasing the server hardware outright and managing it internally.