Polychoron is the [[potatOS]] component responsible for multitasking. PotatOS is written in [[Lua]], which uses [[coroutines]] for cooperative multithreading, and [[ComputerCraft]], which uses primarily event-driven IO, so Polychoron creates coroutines for every thread/process, waking them when the appropriate event is received. Unlike the native `parallel` mechanism, Polychoron processes can be added, removed or paused at runtime.

Since PotatOS Epenthesis, Polychoron has also managed capabilities and restrictions for each process and provided IPC.