Analog vs. Digital Signals

Front

What are analog signals?

Back

Analog signals are continuous signals that represent physical measurements. They can take on any value within a given range.

Front

What are digital signals?

Back

Digital signals are discrete signals that represent data as binary values (0s and 1s). They can only take on specific values.

Front

What is an example of an analog signal?

Back

An example of an analog signal is a whale song, which varies continuously in frequency and amplitude.

Front

What is an example of a digital signal?

Back

An example of a digital signal is a computer file, which is stored as binary data.

Front

What does it mean for a signal to be continuous?

Back

A continuous signal can take on any value within a range, as opposed to being limited to specific values.

Front

What does it mean for a signal to be discrete?

Back

A discrete signal can only take on specific values, typically represented as binary numbers.

Front

What is the process of converting analog signals to digital signals called?

Back

The process is called sampling.

Front

What is a key disadvantage of analog signals?

Back

Analog signals are more susceptible to noise and degradation over distance.

Front

What is a key advantage of digital signals?

Back

Digital signals can be easily stored, processed, and transmitted without degradation over time.

Front

What is the term for the two values that digital signals can represent?

Back

Binary.