But in case you're curious, and you don't have to understand this to know the difference between analog and digital signals and when they might be useful, this first place is the ones place just as you're used to.

但如果您很好奇，并且您不必了解这一点即可了解模拟信号和数字信号之间的区别以及它们何时可能有用，那么第一个位置就是您习惯的位置。