Every Operating System Explained in 12 Minutes

The most-used operating system on Earth isn't Windows — it's the one in your pocket. And they're all secretly one family. We explain every operating system in plain English and reveal the family tree that connects them: Windows, macOS, Linux, Android, iOS, ChromeOS, SteamOS, Unix, BSD, and the newcomer HarmonyOS. You'll learn how the kernel — the hidden core under every OS — ties it all together, why your Android phone is literally a little Linux computer, how your Mac and iPhone are direct descendants of 1969's Unix through BSD (the same code inside your PlayStation), and how SteamOS is quietly breaking the "Linux can't game" rule on the Steam Deck. The big reveal: almost every system traces back to Unix — with Windows standing alone on its NT kernel as the true outsider, and Huawei's HarmonyOS trying to start a brand-new bloodline. You're not team-Windows or team-Mac — you already use four or five of these every single day. 🔔 Subscribe to PCExplainer for more tech explained in plain English — new videos every week. 💬 Got a topic you want explained next? Drop it in the comments. #PC-Explainer #OperatingSystems #WindowsVsMacVsLinux