Answers for the Teacher Only

---

What Do You Think?

Analog signals are continuous, like the position of the hands of a clock or the pointer on a traditional speedometer. Digital signals are numbers that cover a certain range in a series of many small but distinct steps, like the readout on a digital clock or a digital speedometer. Digital signals have the distinct advantage that they may be represented by binary numbers, which can be manipulated and transmitted far more accurately than analog signals. For further information, see Background Information.