📚 Resources 03 — Go Deeper on the Internet
All free, none required. One of these is a map you’ll want to show people at dinner.
🎬 Videos
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Code.org — “How the Internet Works” — a short official video series on code.org (and Code.org’s YouTube channel) featuring engineers, including internet pioneer Vint Cerf, explaining wires, IP addresses, packets, DNS, and HTTP in plain language. Best for: the gentlest reinforcement of this exact module, about 40 minutes total.
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Crash Course Computer Science — the internet episodes — the same energetic YouTube series recommended throughout Part 1; its networking stretch (look for the episodes titled “Computer Networks”, “The Internet”, and “The World Wide Web”) retells this module with animations and history. Best for: visual learners who want a second pass at higher speed.
🖱️ Interactive
- Khan Academy — “Computers and the Internet” (khanacademy.org, under Computing) — the internet units cover IP addresses, packets, routing, DNS, and HTTPS with short articles, videos, and self-check questions. Best for: readers who like to quiz themselves as they go and want a bit more technical depth than this module, still gently delivered.
🗺️ The map
- Submarine Cable Map (submarinecablemap.com) — a live, zoomable map of the real undersea cables carrying the world’s internet, maintained by the telecom research firm TeleGeography. Best for: everyone — five minutes here makes “the cloud is under the ocean” unforgettable, and it’s the single best thing to show a skeptical friend.
đź“– Reading
- Cloudflare Learning Center (cloudflare.com/learning) — free plain-language explainer articles from a major internet infrastructure company; start with “What is DNS?” and browse from there to packets, HTTPS, and encryption. Best for: readers who prefer text to video and want trustworthy answers one topic at a time. (It’s a company site, so ignore any product mentions — the explainers stand on their own.)
⚠️ Watch out: networking material escalates quickly into acronym soup (TCP, BGP, TLS…). If a resource starts drowning you in three-letter words this module never used, you haven’t missed anything — you’ve reached the deeper layers. Module 13 returns there with proper preparation.