Strip board vs Donut Board

What is the difference between a donut board and a strip board? How do they connect?

Stripboard has strips of copper on it, but donut board does not. With donut board, you must connect the components with copper wire, whereas with stripboard the ready-made copper strips conenct the components. You can cut the copper strips with a "spot face cutter" if you don't want some parts connected (e.g. under a DIP IC). You can use copper wire on donut board to make connections in any shape you want, not just in strips.