I'm not sure where to ask this question so I'll ask it here.

Will "Desktop" still be available if there is not an o/s installed? If I wanted to set up a system for just a file server, back-up, digital picture download & organization device, etc,... and didn't want to have to buy an o/s, would Desktop still be there? I'm thinking that the Desktop is part of the o/s but I don't know for sure.