Digital and Analog Signal Retake

Front

What is an analog signal?

Back

A representation of information that is communicated in a continuous form, such as sound or light.

Front

How do digital signals compare to analog signals in terms of noise?

Back

Digital signals are less affected by noise than analog signals.

Front

What devices use digital signals to store, send, or receive information?

Back

Digital thermometer, cell phone, sensors, and many others.

Front

What does the code '1 wave pulse = 0; 2 wave pulses = 1' represent?

Back

It represents a binary code where quick wave pulses are used to encode information.

Front

What is noise in the context of signals?

Back

The unwanted modification of a signal that can distort the information being communicated.

Front

What is a digital signal?

Back

A representation of information in discrete values, typically represented as binary code (0s and 1s).

Front

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

Back

Digital signals can be compressed, encrypted, and are less prone to degradation over distance.

Front

What is a common example of an analog signal?

Back

Sound waves, which vary continuously in amplitude and frequency.

Front

What is the purpose of encoding in digital communication?

Back

To convert information into a format suitable for transmission or storage.

Front

What is a binary system?

Back

A system of representing information using only two states, typically 0 and 1.