https://bytesizedacademy.org/ 2026-10-18 https://bytesizedacademy.org/lessons/ 2026-10-18 https://bytesizedacademy.org/lessons/what-is-a-network/ 2026-10-11 https://media.bytesizedacademy.org/2026-10-11-ep01/thumbnail.png What is a network? Two devices and one cable is all it takes. From your home Wi-Fi to the whole internet, it's networks all the way up. https://media.bytesizedacademy.org/2026-10-11-ep01/video.mp4 56 2026-10-11T00:00:00-07:00 yes https://media.bytesizedacademy.org/2026-10-11-ep01/thumbnail.png https://bytesizedacademy.org/lessons/router-vs-switch-vs-modem/ 2026-10-11 https://media.bytesizedacademy.org/2026-10-11-ep02/thumbnail.png Router vs switch vs modem That "router" on your shelf is usually three devices in a trench coat. Here's what each one does. https://media.bytesizedacademy.org/2026-10-11-ep02/video.mp4 61 2026-10-11T00:00:00-07:00 yes https://media.bytesizedacademy.org/2026-10-11-ep02/thumbnail.png https://bytesizedacademy.org/lessons/what-is-an-ip-address/ 2026-10-11 https://media.bytesizedacademy.org/2026-10-11-ep03/thumbnail.png What is an IP address? Every device online has an address, just like your house. Here's how to read one. https://media.bytesizedacademy.org/2026-10-11-ep03/video.mp4 64 2026-10-11T00:00:00-07:00 yes https://media.bytesizedacademy.org/2026-10-11-ep03/thumbnail.png https://bytesizedacademy.org/lessons/what-is-a-mac-address/ 2026-10-12 https://media.bytesizedacademy.org/2026-10-12-ep04/thumbnail.png What is a MAC address? Your phone has two addresses, and one of them came from the factory. Here's what it is and how it works with your IP address. https://media.bytesizedacademy.org/2026-10-12-ep04/video.mp4 61 2026-10-12T18:00:00Z yes https://media.bytesizedacademy.org/2026-10-12-ep04/thumbnail.png https://bytesizedacademy.org/lessons/public-vs-private-ip/ 2026-10-13 https://media.bytesizedacademy.org/2026-10-13-ep05/thumbnail.png Public vs private IP Google has never seen your laptop's IP address. Here's the difference between private addresses inside your home and the one public address the internet sees. https://media.bytesizedacademy.org/2026-10-13-ep05/video.mp4 65 2026-10-13T17:00:00Z yes https://media.bytesizedacademy.org/2026-10-13-ep05/thumbnail.png https://bytesizedacademy.org/lessons/what-is-dns/ 2026-10-14 https://media.bytesizedacademy.org/2026-10-14-ep06/thumbnail.png What is DNS? Your computer has no idea what "google.com" means. DNS, the internet's contacts app, turns the names you type into the IP addresses computers use. https://media.bytesizedacademy.org/2026-10-14-ep06/video.mp4 58 2026-10-14T01:02:00Z yes https://media.bytesizedacademy.org/2026-10-14-ep06/thumbnail.png https://bytesizedacademy.org/lessons/the-osi-model-7-layers/ 2026-10-14 https://media.bytesizedacademy.org/2026-10-14-ep11/thumbnail.png The OSI model: 7 layers Every message you send goes down seven layers and back up seven on the other side. Here's what each OSI layer does, and one silly sentence to remember them all. https://media.bytesizedacademy.org/2026-10-14-ep11/video.mp4 57 2026-10-14T16:00:00Z yes https://media.bytesizedacademy.org/2026-10-14-ep11/thumbnail.png https://bytesizedacademy.org/lessons/what-happens-when-you-type-a-url/ 2026-10-15 https://media.bytesizedacademy.org/2026-10-15-ep07/thumbnail.png What happens when you type a URL? You type a web address and press Enter. Here are the six steps that happen before the page appears, often in well under a second. https://media.bytesizedacademy.org/2026-10-15-ep07/video.mp4 59 2026-10-14T03:11:50Z yes https://media.bytesizedacademy.org/2026-10-15-ep07/thumbnail.png https://bytesizedacademy.org/lessons/what-is-a-packet/ 2026-10-16 https://media.bytesizedacademy.org/2026-10-16-ep08/thumbnail.png What is a packet? Your streaming movie doesn't arrive in one piece. It arrives as thousands of small packets, each labeled with where it's from, where it's going and which piece it is. https://media.bytesizedacademy.org/2026-10-16-ep08/video.mp4 59 2026-10-14T04:14:05Z yes https://media.bytesizedacademy.org/2026-10-16-ep08/thumbnail.png https://bytesizedacademy.org/lessons/lan-vs-wan/ 2026-10-17 https://media.bytesizedacademy.org/2026-10-17-ep09/thumbnail.png LAN vs WAN Your house is a LAN. The internet is a WAN. Here's the difference between a local area network and a wide area network, and where your router fits. https://media.bytesizedacademy.org/2026-10-17-ep09/video.mp4 56 2026-10-14T05:17:06Z yes https://media.bytesizedacademy.org/2026-10-17-ep09/thumbnail.png https://bytesizedacademy.org/lessons/network-topologies/ 2026-10-18 https://media.bytesizedacademy.org/2026-10-18-ep10/thumbnail.png Network topologies Every network picked a shape. Here's how star, mesh and spine-leaf networks are wired, and what each one is good at. https://media.bytesizedacademy.org/2026-10-18-ep10/video.mp4 55 2026-10-14T07:07:09Z yes https://media.bytesizedacademy.org/2026-10-18-ep10/thumbnail.png https://bytesizedacademy.org/about/ 2026-10-11 https://bytesizedacademy.org/privacy/ 2026-10-11 https://bytesizedacademy.org/terms/ 2026-10-11