After the signal enters at the left, we can figure out what happens by remembering that cells only affect one another if they are very close together. In fact, for the charges in one cell to move the charges in another cell, they must be sitting side by side.
So our input cell only moves charges on the center cell. But then the rearranged charge in that center cell moves the charges in the three neighboring cells. This finally transfers the input to all three output branches.
Memory cells and spreading "wires" give us a start on building a QCA based microprocessor. But to complete the job we need logic "gates." To learn how these would be built click here.
