5 of 8Image
The UI-less Server Core is Microsoft's preferred installation for Windows Server 8. It's more secure, and doesn't have the overhead of a full GUI.
Server Manager is the heart of Windows Server 8. It's where you'll set up and manage both local and remote servers, with tools for managing groups of servers and giving you an at-a-glance view of issues and problems.
You can add features and roles to both local and remote servers from the Server Manager. Just choose what you need to install, and Windows Server will install the appropriate packages.