Internet

Summary

The global network of interconnected computers that lets browsers, servers and devices exchange data using standardized protocols like TCP/IP. It includes the physical network infrastructure, routers, switches, wireless networks, data centers, and the protocols that allow independently operated networks to communicate reliably across the world.

• 1Learn the basics of TCP/IP and how packets travel between devices. Focus on understanding the underlying reason it works, not only memorizing the definition.
• 2Understand the difference between the Internet and the World Wide Web. Be able to explain the concept in your own words and identify where it appears in a real application.
• 3Watch a short explainer on how data physically moves across networks.