Highly portable, multitasking OS for low memory networked embedded systems; typical install is 2K RAM, 40K ROM; event-driven kernel, programs load and unload dynamically at runtime; processes use lightweight protothreads for linear, thread-like progra...
Very lightweight stackless threads; give linear code execution for event-driven systems, designed to use little memory; library is pure C, no platform-specific Assembly; usable with or without OS. Open source, BSD-type license.