Scoreboard Mania

I just watched a few of my brother's basketball games recently and happened to notice that the scoreboard relates very closely to what we have just studied. Every number displayed on the scoreboard is generated by an electrical current that probably is altered in course depending on what number it is displaying. For example, every time the number is changes, the sequence of lights on the scoreboard is changed. Each of the bulbs in the scoreboard is lit up according to the actual controls of the board. For example, when the scorekeeper flips the switch from 0 to 2, some lights are disconnected from the circuit, while other lights are connected to it. This goes also for the time keeper, except that the time constantly is changing, as the time winds down in the quarter/game. When the time keeper stops the clock, he is maintaining a certain circuit that freezes the time. Then, when he continues the clock, the circuit continues to switch every second.