It used to be typical for every variation of Raspberry Pi to require booting from an SD or microSD card. It wasn't until the Raspberry Pi 2 Model B that the firmware received an update for booting ...
Booting my Raspberry Pi over the network made it faster to manage, easier to maintain, and far more reliable than using SD ...
The makers of Raspberry Pi computers have released a new boot loader that lets users install an operating system like the official OS directly on the compute board rather than via a separate computer.