Digital vs Analog

Front

What is the main difference between digital and analog signals?

Back

Digital signals represent data in discrete values (0s and 1s), while analog signals represent data in continuous waves.

Front

Define an analog signal.

Back

An analog signal is a continuous signal that varies over time and can take any value within a given range.

Front

Define a digital signal.

Back

A digital signal is a discrete signal that represents data as a sequence of separate values, typically in binary form.

Front

What does it mean for a signal to be discrete?

Back

A discrete signal consists of distinct or separate values, as opposed to a continuous signal that can take any value.

Front

What is an example of an analog device?

Back

An example of an analog device is a vinyl record player.

Front

What is an example of a digital device?

Back

An example of a digital device is a smartphone.

Front

True or False: Analog signals can only represent two states, on and off.

Back

False. Analog signals can represent a range of values, not just two states.

Front

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

Back

Digital signals are less susceptible to noise and interference, making them more reliable for data transmission.

Front

What is sampling in the context of digital signals?

Back

Sampling is the process of converting an analog signal into a digital signal by measuring the amplitude of the analog signal at discrete intervals.

Front

What does the term 'bit' refer to in digital signals?

Back

A bit is the smallest unit of data in a digital signal, representing a binary value of either 0 or 1.