Digital vs. Analog Signals

Front

What is a digital signal?

Back

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

Front

What is an analog signal?

Back

An analog signal is a type of signal that represents data as continuous waves, which can vary in amplitude and frequency.

Front

How do computer hard drives and USB drives store data?

Back

They store data using binary code.

Front

What type of signal is used to set the color of each pixel on a computer screen?

Back

Digital signal.

Front

Which type(s) of signal(s) can be transmitted as radio waves?

Back

Both analog and digital signals can be transmitted as radio waves.

Front

Which type(s) of signal(s) can be easily corrected to remove noise?

Back

Digital signals can be easily corrected to remove noise.

Front

What values can numbers in a digital code have?

Back

Numbers in a digital code can have only set values.

Front

What is binary code?

Back

Binary code is a system of representing data using only two symbols: 0 and 1.

Front

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

Back

Digital signals are less susceptible to noise and can be easily processed and stored.

Front

Can analog signals represent more than just numbers?

Back

Yes, analog signals can represent a wide range of values, including sound and light.