After entering the product key, the second prompt will ask for your choice of installation. Basically, there are two options of Installation: namely, (1) Full — installs the complete installation, including the entire user interface, and the server roles. (2) Server Core – installs a minimal installation without the standard Windows user interface, and with a subset of server roles that can be managed from a command prompt. I think the latter works like Terminal Console of Linux Server edition.
