In this movie, a BBC Micro model B+ is shown first in native mode, then a 32016 second processor is switched on and BREAK is pressed showing the change in prompt. Then Basic32 is run from disc. Then the machine is rebooted (shift-BREAK) into PanOS, the Acorn operating system for the 32016, and a few commands typed.
The machine has a pair of double-sided 80 track disc drives. Drive 0 contains the disc 'Panos 1' and drive 1 contains the disc 'Panos 2'. Panos seems to boot from drive 0, use drive 2 (other side of drive 0) as a library to read commands from, and use drive 1 as a working directory.
![](https://i.ytimg.com/vi/WUgmlmuHZ9c/mqdefault.jpg)