public Bus(int speed, Queue []inputBuffers, Queue []outputBuffers)
    {
        
        //passes the constructor values to the base class SwitchingFabric
        super(speed, inputBuffers, outputBuffers, VERTICALBUSES);
        //indicate has no memory
        hasMemory = false;
        //set the recent bus, because it never changes for this fabric type
        recentBus = 0;
    }