http://www.theregister.co.uk/2015/12/02/pi_versus_oberton/
They asked for more info about the OS. So, since there's not a lot of this about, here is some more info about the Oberon programming language, the Oberon operating system written in it, and the modern version, AOS.
The homepage for the FPGA OberonStation went down for a while. Perhaps it was the interest driven by my article. ;-)
It is back up again now, though:
http://oberonstation.x10.mx/
The Wikipedia page is a good first source for info on the 2 Oberons, the OS:
https://en.wikipedia.org/wiki/Oberon_(operating_system)
... and the programming language:
https://en.wikipedia.org/wiki/Oberon_(programming_language)
Prof. Wirth worked at ETH Zurich, which has a microsite about the Oberon project:
http://www.oberon.ethz.ch/
There is a native port for x86 PCs. I have this running under VirtualBox.
http://www.oberon.ethz.ch/archives/systemsarchive/native_new
There's a good overview here:
http://ignorethecode.net/blog/2009/04/22/oberon/
And the Oberon book is online here:
http://www.projectoberon.com/
Development did not stop on the OS after Prof Wirth retired. It continued and became AOS. This has a different type of GUI called a Zooming UI. The AOS zooming UI is called "Bluebottle" and sometimes newer versions of the OS are thus referred to as Bluebottle.
There is a sort of fan page dedicated to AOS here:
http://sage.com.ua/en.shtml?e1l0
