Analog vs Digital Signals PS4-3

Front

What is an analog signal?

Back

An analog signal is a continuous signal that represents physical measurements. It can take any value within a range.

Front

What is a digital signal?

Back

A digital signal is a discrete signal that represents data as binary code (0s and 1s).

Front

What is one disadvantage of analog signals?

Back

When copied, the quality of an analog signal goes down.

Front

Is music from a record an analog or digital signal?

Back

Analog signal.

Front

Is a video game coded as analog or digital data?

Back

Digital data.

Front

How do computer hard drives and USB drives store data?

Back

They store data using binary code.

Front

What does binary code consist of?

Back

Binary code consists of two states: 0 and 1.

Front

True or False: An analog signal is sent in discrete pulses in two states, on=1 or off=0.

Back

False.

Front

What is an example of an analog device?

Back

A vinyl record player.

Front

What is an example of a digital device?

Back

A computer or a smartphone.