5th January 2021 at 8:28am
lisp OS

Assembler/C-Script/Lisp 64 bit, MIMD, multi CPU, multi threaded, multi core, multi user Parallel OS. With GUI, Terminal, OO Assembler, Class libraries, C-Script compiler, Lisp interpreter, Debugger, and more...

You can model various network topologies with point to point links. Each CPU in the network is modelled as a separate host process, point to point links use shared memory to simulate CPU to CPU, point to point, bi directional connections. There is no global bus based networking on purpose.

Backlinks: Lisp at the NASA Jet Propulsion Lab