Amoeba: Powerful free, open source, microkernel-based system that turns a collection of workstations or single-board computers into a transparent distributed system. Used in academia, industry, and government for many years. Runs on many platforms.
Amoeba Distributed Operating System: Technical paper, describes Amoeba, with special focus on its object-based design and use of capabilities, and its innovative Wide Area Network communication scheme; ends by comparing Amoeba and the Sprite distributed OS.
