Synchronous Universal Droplet Logic

A magnetohydrodynamic force fluid logic controller is provided including a solid substrate, a fluid chamber disposed above the substrate, containing a fluid under test. It also includes an active magnet such that the active magnet is disposed to control north and south poles on the fluid under test or on the carrier fluid and a two-dimensional distribution of magnetized domains disposed on a surface of the solid substrate. The magnetized domains have poles activated by the above the active magnet, where the different parts of the above the fluid under test self-interact and split, merge or propagate along different directions on the above the substrate subject to their placement on the magnetized domains, whereby the active magnet regulates the self-interaction. The results of the self-interactions are equivalent to physical binary logic operations where “1” is the presence and “0” is the absence of a fluidic volume at a given location.