Computer networks notes

Introduction to Networking

Why networks matter to developers, and the road ahead. Every section is a drawn page beside a clear written explanation, about 9 minutes in all.

  • Introduction
  • About 9 minutes
  • 10 sections
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The first drawn page of Introduction to Networking: Why networking matters for developers
The chapter's first page: Why networking matters for developers

In this chapter

  • Why networking matters for developers
  • What happens when you make an HTTP request?
  • Networking fundamentals, our base layer
  • How routing works
  • ICMP, ping and traceroute
  • Transport layer: UDP
  • Transport layer: TCP
  • TCP flow control vs congestion control
  • Application layer: DNS and records
  • HTTP versions, WebSockets, and TLS

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