Managed Hosting is an extension of dedicated hosting, but one where the day-to-day maintenance and management of the servers is handled by the hosting provider.
Dedicated hosting is also recognized as a managed hosting or dedicated server service. It is an Internet hosting choice or option in which an organization takes on rent an entire server not shared with anybody else, which is generally housed in a Hosting company data center. The hosting company not only provides dedicated server hosting customers server equipment, but they might also provide administration and other services to their customers. This is a more flexible arrangement for the client as server administration is commonly provided by the hosting organization as an add-on service.