27 C
Lagos
Saturday, October 24, 2020

Difference Between Digital and Analog Signals

- Advertisement - data-full-width-responsive="false">

Anyone working in signal processing or electronics should know two main categories of devices: analog and digital. But what is something analogous? How is it different from digital? Besides, what makes something digital?

What is an analog signal?

- Advertisement -

An analog signal is an uninterrupted signal in which a quantity that varies over time (such as voltage, pressure, etc.) represents another time variable. In other words, one variable is analogous to another.

The result is that analog systems can represent a theoretically infinite number of values: you can reach any value in the parameters that govern the system.

For example, imagine a dimmer connected to a light bulb. In a perfect analog system, the dimmer will have an infinite number of positions between “off” and “full” – and therefore, an endless amount of output levels per bulb.

The lamp output is analogous to the time dependent variable “dimmer position.”

The difference between analog and digital signal

Digital signals, on the other hand, express the variation of a system variable in reply to an array of discrete values ​​(more like a light with an on / off switch or a three-way bulb with several distinct output levels),

Examples of analog signals

Theoretically, we can use the term “analog signal” to describe any continuous signal that uses a time-varying amount to represent another (like mechanical systems like a dial thermometer). But for our purposes, we most often use it to describe electrical signals.

We use analog signals in a wide range of applications, such as:

  • Audio recording and playback.
  • Live sound system/amplification
  • Older technologies for the transmission of video signals (VGA, S-Video, etc.)
  • Radio signals
  • TV signals (until recently)

At one point, even analog computers were available. These new computer devices were used to calculate complex scientific and industrial problems before the development of enough powerful digital computers.

They used several physical phenomena (such as electrical or mechanical quantities) to model the issues to be solved.

Advertisement
data-full-width-responsive="true">

In almost all cases, digital versions have replaced analog equivalents. A recent example is the ubiquity of digital TV streaming or HDMI video standards.

In 2019, all new consumer TVs were digital, like all consumer computers for many years. However, it should be noted that analog and digital are currently used in sound recording, each with its supporters.

Conclusion

Analog signals represent a continuous variable following another time-based continuous variable. They are capable of generating constant information with a theoretically infinite number of possible values.

We have seen analog signals used in almost all types of signal processing and consumer electronics applications.

In most scenarios, they have been replaced by digital versions, although analog processes are still prevalent in sound recording and digital recording equipment.

Fadehan Emmanuel
Moore is an Associate—Editor of TheXplorion. Got a NEWS TIP related to this story — or to anything else in the world of big tech? Please e-mail him: mooreplug[at]gmail.com. You can also connect with him via the connections below the box.
- Advertisement -

Trending Now

10 Technologies That Will Make Your Life Easier During a Pandemic

The sudden enforcement of quarantine has disrupted our daily routines. Not only professionals but also industries had to resort to digital alternatives...
- Advertisement -

10 Best Places to Download Bollywood Movies

Do you spend hours watching Bollywood movies as I do? Have you been in search of the perfect sites to download the...

Startimes Subscription Prices, Packages and Channels List in 2020

StarTimes Nigeria is one of the popular cable TV providers in Nigeria. This service is a subsidiary of a Chinese based company...

GB WhatsApp, WhatsApp Plus and OG WhatsApp Tips and Tricks

Checkout the new GB WhatsApp Tutorial. Hello, welcome to WhatsApp Plus, OG WhatsApp and GB WhatsApp tips and tricks. For the sake of this article,...

GOtv Error Codes: How to Clear and Resolve GOtv Errors

If you are a GOTV user, you have probably encountered one or two GOTV errors, and these errors are preventing you from...

StarTimes Customer Service Contact and Simple Error Fixes

StarTimes has fast become one of Nigeria's most used cable or digital Pay Tv. Despite its vast customer reach, the company has...

New GOtv Packages, Channel List and Price for 2020

GOtv and DStv are both owned by Multichoice, and there's no arguing the fact that they have proven to be the largest...

7 Best Offline Racing Games for Android Users in 2020

Are you a real gamer? If you are one, then you will know how exciting it can be to experience the adrenaline rush that...

Best Low Size PC Action Games For Your Old PC/Laptop With Low Specs

Gaming time is one our favorite time and nothing beats the ability to play high-quality games on our PCs but like some of our...

DStv Channels List, Packages and Prices in 2020

Thousands of people in Nigeria have put their trust in DStv to provide them with the very best of television shows and programs. DStv (Digital...

Catch Up With Some Of The Latest And Most Unique Tricks That Make Online Videos Viral

Social media is an avenue that is undergoing constant change with every passing minute. Amidst this, it is difficult to navigate these...
- Advertisement -

Related Posts

Apple HomePod – Everything You Need to Know

Over the years, Apple has been known as that popular technology brand that responds to trends a little bit late after other brands have...

The Best Software for Developers in 2020

Everyone knows the pressure developers experience daily; you need to keep up with the latest tech, the best software, learn new stuff as soon...

Everything You Need to Know About the New Qualcomm Snapdragon 845 Processor

In one way or the other, you must have heard about Qualcomm, the company behind the Snapdragon mobile phone processors. The company have been dishing...

Learn Programming From Beginner to Pro Using These Android Apps

Programming has captured the hearts of many people as it gives them the ability to think, visualize something and achieve it. Many people choose...

Leave a Reply

This site uses Akismet to reduce spam. Learn how your comment data is processed.