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Beginner Web Development Foundations

What the Internet is

Discover what the Internet really is, how it connects devices and networks around the world, and why it forms the foundation of the modern web.

Adel Self-paced
What the Internet is

The Internet powers websites, applications, online communication, cloud services, and many of the digital tools we use every day—but what exactly is it?

In this course, you’ll learn what the Internet really is and how millions of computers, servers, devices, and networks connect and communicate across the world. You’ll explore the physical infrastructure behind the Internet, how information travels between devices, and the fundamental technologies that make global communication possible.

By the end, you’ll have a clear understanding of the Internet as the foundation on which the World Wide Web and modern web applications are built. This knowledge provides an essential starting point for anyone learning web development.

Curriculum

Understanding the Internet 5 lessons
  • Learning Objectives
  • The Internet Is a Network of Networks
  • There Is No Single Internet Computer
  • The Internet Is Physical
  • The Internet and the Web Are Not the Same Thing
Connecting to the Internet 2 lessons
  • Devices Connect Through Networks
  • Your ISP Connects You to the Internet
Internet Addresses & DNS 5 lessons
  • Computers Need Addresses
  • IPv4 Addresses
  • IPv6 Addresses
  • Humans Prefer Names
  • DNS Connects Names to Addresses
How Data Travels Across the Internet 4 lessons
  • Routers Move Traffic Between Networks
  • Information Is Broken Into Packets
  • Packets Can Travel Across Complex Networks
  • Protocols Are Rules for Communication
Clients, Servers & Internet Infrastructure 4 lessons
  • Clients and Servers
  • What Is a Server?
  • Data Centers
  • Undersea Internet Cables
How Websites Work Across the Internet 3 lessons
  • What Happens When You Visit a Website?
  • The Browser Does More Than Display Pages
  • Websites Can Depend on Multiple Servers
The Modern Global Internet 4 lessons
  • The Internet Is Designed to Connect Different Systems
  • The Internet Is Global, but Distance Still Matters
  • The Cloud Is Still Physical Computers
  • Why Web Developers Need to Understand the Internet
Putting It All Together 3 lessons
  • Practical Example: Following One Request
  • Key Terms
  • Lesson Summary
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Instructor
Adel
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Lifetime