Before diving into my hands-on dialog, here are a couple of links that contain interesting and useful information about the new Raspberry Pi 4 and Raspbian Buster operating system: Eben Upton's Blog ...
The firmware included with the Raspberry Pi 2 Model B version 1.2 introduced the possibility of booting from a USB device: before that, it was only possible to boot from an SD or microSD card. But ...