GitHub - babbleberry/rpi4-osdev: Tutorial: Writing a "bare metal" operating system for Raspberry Pi 4When we buy a computer or a tablet/smartphone it typically comes with some basic software pre-installed. You'll likely be familiar with watching Microsoft Windows, Mac OS, iOS, Android or maybe even Linux start up as you power the device (or boot it) for the first time. These are all operating systems - software designed to make computer chips work out of the box for mere mortals like you and me.
