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

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]

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.

Lightweight, very modular component-based, multitasking, embedded OS; developed, used for many research projects. Goal: manage fast data streams in multimedia environments; for speed and low overhead has zero copy architecture: passes pointer referenc...

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]

Modular object-oriented application to index files across networks. Has plug-in type data retrieval system, webserver, peer-to-peer connections for network-wide information gathering, retrieval; has features of OSs, database management systems, distri...

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