Object-oriented OS uses best parts of VMS, Unix, Windows NT. Almost everything in kernel is an object (threads, processes, devices, files, event flags, more) to which one can assign logical names. [Open Source]

Collaborative undertaking by an international group of Java programmers and enthusiasts to create free Java OS. [Open Source]

Plugin-based architecture: if a feature is unneeded, don't download it or waste storage; Linux and Windows compatible; GUI driven, fully skinable to alter its look; includes voice recognition, interactive help system. [Open Source]

Tool designed to teach inner workings of operating systems: simple animated simulated OS and hardware coded in Java. RCOS successor.

Object Operating System, OOS, pronounced ooze; goal: create new OS architecture, which uses filesystem to do many jobs usually done via various means. Design philosophy inspired by Unix, Plan 9, but does many things uniquely, trades compatibility for ...

Goal: create modern 32/64-bit OS, based on ideas of object-orientation, nanokernel; coded in C++, C and Assembly where needed. Open source, BSD.

Object-based framework to implement network protocols; defines an interface that protocols use to invoke operations on one another (i.e., to send messages to and receive messages from adjacent protocols) and a set of libraries to manipulate messages, ...