TL;DR: The Raspberry Pi 3 Model B is out now. This latest model includes 802.11n WiFi, Bluetooth 4.0, and a quad-core 64-bit ARM Cortex A53 running at 1.2 GHz. It’s a usable desktop computer.

The image below showes 3 of these components interacting together during booting ... loads the following one until they reach the kernel. As we are talking about raspberry pi here is the booting ...

This label will typically tell you the model and the version e.g. Raspberry Pi 3 Model B V1.2. If, however, you only see the ...