-The motherboard takes care of the entire system task in one way or another. It is a go-between of the system. You will find that almost all components are attached to motherboard in one way or another. Without the motherboard these system components would be hard pressed to work.
-As a go-between for the system you want to insure that you buy a good stable motherboard. Don't go cheap on this item and get a good one. The motherboard can make and break a good system.
-When deciding on a case and and processors we need to be concerned with designs.