How the Internet Works


  9 lessons       1:02 hour   4.67            (6)

How the Internet Works


  9 lessons       1:02 hour   4.67            (6)

Course outline


The Internet's growth has become explosive and has become such a large part of our lives that we cannot imagine our lives without it. So a good understanding would be helpful to use this new tool most effectively.

This course explains the underlying infrastructure and technologies that make the Internet work.

This course is curated by Fund Social Good NPC,

A short assessment of 10 questions follows this course, an 80% pass rate is required to earn the certificate (note: the assessment needs to be completed in full without breaks).

What you'll learn

Lesson 1: What is the Internet

    • What the internet is.
    • Who created it.
    • Why it was created.

Lesson 2: Wires, Cables and Wifi

    • What Binary is.
    • How information is physically moved across the internet

Lesson 3: IP addresses and DNS

    • How the internet is designed.
    • What the protocols/standards of the internet are.
    • What IP and DNS means and does.

Lesson 4: Packets, Routing and Reliability

    • How data is delivered to you reliably.
    • How data is packaged and routed to each person.
Lesson 5: HTTP and HTML

    • The language of the Internet.
    • How computers communicate with each other.

Lesson 6: Encryption and Public Keys

    • How information is kept safe. 

Lesson 7: Cybercrime and Security

    • How to keep yourself safe from crime on the Internet.

Lesson 8: How Search works 

    • How an internet search works.


  1. All around the world, the internet continues to transform how we connect with others, organize the flow of things, and share information. With its growing influence on individual consumers and large economies alike, the internet has become an increasingly vital part of our day-to-day lives. 
  2. How many people use the internet? Almost 4.57 billion people were active internet users as of July 2020, encompassing 59 percent of the global population. Mobile has now become the most important channel for internet access worldwide as mobile internet users account for 91 percent of total internet users.
  3. The Internet continues to be the most democratic and equitable of all the mass media. With a very low investment, anyone can have a web page on the Internet. This way, almost any business can reach a very large market, directly, fast and economically, no matter the size or location of the business. 
  4. With a very low investment, almost anybody that can read and write can have access and a presence in the World Wide Web allowing people everywhere to express and publish their ideas and opinions like never before.

Role models

Baratang Miya, GirlHype Founder & CEO

From studying in a township to being named as one of the Top 3 nominees for the 2016 MTN Women in ICT Community Builder Award, Baratang Miya continues to create an enabling environment for girls and women in tech.

Saida Nyasasi, HerFingersCanCode Founder & CEO

Who said you can't be a 24-year-old CEO while pursuing a degree in Computer Engineering and IT? Saida Nyasasi is dedicated to inspiring African women, especially young women, proving that you can make a social impact in your community at any age!

Zandile Keebine, GirlCode Founder

Zandile Keebine's passion for software development goes beyond identifying appropriate and innovative soltware solutions, but also towards making the tech world an equal and safe space for young girls and women to be in by founding GirlCode.