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The Absolute Beginners Guide to Information Technology 2026 (Udemy.com)

Gain a solid foundation on all branches of IT including hardware, software, networks, programming, cyber security and AI

Created by: Alexander Oni

Last updated May 2026

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What you will learn

  • Basic Networking skills
  • How the Internet works
  • How to build a very basic web page
  • Computer Networking technologies
  • The truth about hackers and how hacking is really done
  • The different hardware parts of a computer system
  • How Switches and Routers work
  • Cloud Computing
  • The different programming languages and frameworks

How it compares

Against the other 848 rated Udemy courses in IT Certifications on CourseDuck:

  • Rating4.7 out of 5higher than 80% of them
  • Reviews4,069#107 of 849 by number of reviews
  • Length4.7 hoursshorter than 69% of them
  • Last updatedMay 2026more recently than 65% of them

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Course Description

** UPDATED DEC 2025 WITH BRAND NEW MODULE ON ARTIFICIAL INTELLIGENCE **


** Do you want to learn about the basics of all branches of Information Technology? You have come to the right course **

Have you ever wondered how the internet works or how that router sitting in your room is able to provide you with internet connectivity? Or perhaps maybe you have wondered about the physical components that make up a computer and how they work together. Or perhaps the world of cyber security and hackers has always fascinated you and you want to know more.

Welcome to the absolute beginners guide to information technology.

This is a course I have designed specifically to provide you with solid knowledge of all 6 main branches of information technology.

What will you learn?

The course is divided into 6 main sections.


HARDWARE 101

Here you will learn about all the most important parts that make up your computer system and how they function together. You will learn about the different types of memory, the processor as well as the BIOS and CMOS. You will also learn about the different types of storage involved in computer hardware.


SOFTWARE 101

In section two, you will learn exactly what software are and how they are developed. You will also learn about operating systems such as Windows and MAC. You will also learn the basics of file systems and software management.


NETWORKING 101

Learn about the tools and technology involved in this exciting field. You will learn about

  • Routers

  • Switches

  • IP and MAC Addresses

  • Ports & Protocols

  • .Bandwidth

  • VPNs

  • Cloud Computing

  • and much more

You will also learn some practical skills such as how to ping websites and even trace data sent across a network.


WEBSITES, WEB HOSTING, PROGRAMMING AND THE INTERNET

We will discuss the internet and websites in general in this section.

You will learn about the most popular programming languages as well as the code that makes up websites. You will learn about internet concepts and technologies such as:

  • Web hosting

  • Web severs

  • The Domain Name System

  • Cookies

  • TCP/IP

  • and much more

You will also learn just exactly how the internet truly works behind the scenes.


CYBER SECURITY

In this module, you will learn about cyber security. You will learn the core technologies used in this field and also how hackers really hack and operate behind the scenes. I will expose you to the different types of ways your data can be stolen or destroyed and what you can do to protect yourself.


ARTIFICIAL INTELLIGENCE

In the modern world we live in today, artificial intelligence is becoming a very important and influential part of our lives. In this module we are going to cover the basic fundamentals of AI including:

  • Machine Learning

  • Deep Learning

  • Natural Language Processing

  • Challenges & Ethical Considerations for AI

  • The future of AI


PERFECT FOR JOBS IN THE IT INDUSTRY

If you are looking to switch careers and find a job in the IT industry, this course will be perfect for you.

I hope you enroll in the course today.

Cheers.

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Instructor Details

Alexander Oni

My passion is teaching people through online courses in a fun and entertaining manner.  I have been teaching online for about 5 years now and during this period, I have created over 25 different courses with more than 220,000 students registered worldwide.

What would you like to learn?

Would you like to learn how to build and manage your WordPress website?

Would you like to learn advanced skills that will make you a true WordPress developer?

Would you like to learn how you can establish a successful career as a web developer?

Would you like to learn the basics of information and cyber security?

 If you want to do any of these things, just enroll in the  course and  I'm always improving my courses so that they stay up to date and the  best that they can be. Check them out, and enroll today!

MORE ABOUT ALEX:

We all have one shot at life and as such, I believe in living life to the fullest. This means constantly stepping out of my comfort zone by visiting new places and trying out new things. My relative success on Udemy has given me both financial freedom and the ability to be location independent. I am currently travelling around the world spending about a month in one city (current location is Chiang Mai, Thailand) before moving on to the next. 

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Reviews

4.7

4,069 ratings on Udemy

Select a bar to show only those reviews.Select the bar again to show every rating.

By Jonna Makkonen on 4/15/2026

This is a very throughout and at the same time easy to follow class. This was great for me, who wanted to brush up things I learned back when floppy disk was the only way to return my it-homeworks. Equally I feel this could be also good for all kind of beginners (even schoolkids) as long as they understand enough English. Also, as a great lover (and user) of different kind of analogs, I really liked the ones here:)

By Alonzo Garza on 3/3/2026

Some of the stuff I already know due to being a huge gamer. But going in more details about every component so far is great and very easy to follow. Getting half ways through the course has shown me what I'm interested in. Different ways to go about networking and smaller details that I know will help in the future.

By Nafeesa Mohamed Sha on 2/8/2026

it's very good however it keeps stoping randomly

By Mike Finnegan on 2/5/2026

I found this course to be extremely valuable, with right-sized modules and easy to understand content. His use of analogies to help visualize the concepts I found to be outstanding. I definitely recommend this course to anyone looking to better understand cybersecurity concepts.

By Christopher Dutcher on 3/17/2025

This has served me well as a beginners course, and as I have progressed further I have discovered why it is labeled as such. There is nothing I would consider to be advanced or particularly detailed in the explanations. However, the topics covered are comprehensive and cover a very broad range of topics. There are things that I have already learned as well as several topics I am unfamiliar with. All in all a worthwhile course for anyone starting out or looking to broaden their understanding.

By Ramon Stewart on 12/28/2023

Great break down of the concepts. I am really impressed by the instructor's breadth of knowledge when it comes to Information Technology. I started following him on social media because of his demonstrated level of expertise. I look forward to taking more of his courses because he is so upbeat and engaging.

By Zach Marotte on 4/5/2023

The instructor is professional, informative, and keeps the course engaging. I learned more than I had ever before about the fundamentals of computer hardware, networking, and how the internet is structured. I would recommend Alex's course to anyone who is interested in learning more about the IT field in general.

By Giovanni Lops on 10/16/2022

Spiegazioni buone , non estremamente dettagliate, segue un filo logico e non lascia nulla al caso, coincide con le premesse fatte ad inizio corso e sopra tutto al titolo in questione. Consigliato per chi non mastica la materia e vuole un'infarinatura sull' I.T.

By Advick V on 12/28/2020

This course a lot of content, and I am 100% satisfied with this course. I find it very informative and covers a lot of content in a fun and entertaining way. The instructor is the best I have come across on any platform. I would recommend this course to everyone, who is hesitant to buy this course.

By Joseph Pope on 9/2/2020

Another great course from Alex! After taking cyber security part 1, I decided to run through this course before moving onto part 2 to develop an even better base foundation before moving on to the more practical aspects of security. Highly recommend, as it builds a foundation of knowledge in networking, hardware, websites/programming, and security. The ONLY downside, in my opinion, was there were no quizzes to assess your knowledge as you went along, but this is a minor detail, just take notes.

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Overall Score : 94 / 100