EDIT Many computer stores/companys call machines with dual procesors, SCSI, High end ram , servers because that is what they are normaly used for.What defines a server is not so much what componets go into it as what you use it for. Servers are a centralized point to store files, and to run programs from. It is also used to store user information and run authentication services. My desktop (gaming machine) at home is MUCH more powerful then my server. Hope this helps