The name 'Urbit' refers to a 'clean slate' computing stack that comprises a new OS (Arvo), new languages (Nock, a minimalist functional assembly; and Hoon a symbol-infested Lisp (sort of?)), a new P2P networking protocol (Ames), a new filesystem (Clay), etc. Familiar computing paradigms reimplemented from scratch, functionally. And some Ethereum infrastructure (the 'Azimuth' PKI).Your Urbit is a personal cloud server. A simple, private, general-purpose virtual computer on an encrypted P2P network.
Japanese system architecture with some interesting history.
https://en.wikipedia.org/wiki/BTRONThe Japanese government planned to introduce the Matsushita PC in its schools, but the Office of the United States Trade Representative objected, claiming that the plan constituted market intervention and threatened Japan with sanctions; not coincidentally, the former official of the United States Trade Representative office who issued the threats against the Japanese government, Tom Robertson, had been offered by Microsoft the very lucrative position of being their Tokyo-based director for government affairs in Asia.
Retro 16-colour OS, a solo project built as an act of Christian worship, including Bible-themed games, a new C-like language (HolyC), a divination program to speak with God, and decidedly no networking capability.
https://thenewstack.io/the-troubled-leg ... rogrammer/
http://www.codersnotes.com/notes/a-cons ... -templeos/
K is a very terse language used with time-series, in-memory database platform kdb+, used in finance. kOS is its author's OS project, which uses K. Hopefully it's not just vapourware.
http://archive.vector.org.uk/art10501320At Iverson College in 2013 he demonstrated the new graphics layer, z – 9Kb of code to replace the X Windows system. For the first time we saw the kOS desktop, solid black with a Tolkienesque legend top left: one system/all devices. Arrayed on the right edge, the icons of five kOS apps. He launched the text editor app and then wrote a new one, working out the key callbacks in front of us and explaining them as he worked. As he defined each callback the new app acquired it: no compile, load, install cycle. In eight lines of K he had replicated the core function of Notepad. At this point, with the new z layer in place, kOS weighed 62Kb.