Digital vs. Analog Signals

Front

What is an analog signal?

Back

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

Front

What is a digital signal?

Back

A digital signal is a discrete signal that represents data as a sequence of distinct values, typically in binary form (0s and 1s).

Front

Give an example of an analog signal.

Back

A record player is an example of an analog signal.

Front

Give an example of a digital signal.

Back

A CD player is an example of a digital signal.

Front

How does noise affect analog signals?

Back

Analog signals are more susceptible to noise, which can distort the signal and affect quality.

Front

How does noise affect digital signals?

Back

Digital signals can be easily corrected to remove noise, making them more reliable.

Front

Which type of signal is generally more reliable, analog or digital?

Back

Digital signals are generally more reliable than analog signals.

Front

What is the main advantage of digital signals over analog signals?

Back

The main advantage of digital signals is their ability to be easily processed, stored, and transmitted without degradation.

Front

What does it mean for a signal to be continuous?

Back

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

Front

What does it mean for a signal to be discrete?

Back

A discrete signal consists of distinct or separate values, often represented in binary.