Tornado
- Object-oriented operating system for large-scale shared-memory multiprocessors. Minimizes data sharing via careful design: often eliminates data sharing even when sharing appears natural. Successor to Hurricane.
- http://www.eecg.toronto.edu/EECG/RESEARCH/ParallelSys/tornado.html

MK++
- Mach compatible microkernel; gives one code base able to support high assurance, scalability, realtime, distribution, SMP, fault handling, performance; all built in an object-oriented B3 evaluable fashion.
- http://www.opengroup.org/RI/technologies/mk-dbleplus/

Maruti
- Goal: create an environment for developing and deploying critical applications with hard real-time constraints in a reactive environment. Such applications must be able to execute on a platform of distributed and heterogeneous resources, and operate conti
- http://www.cs.umd.edu/projects/maruti/

Choices Object-Oriented Operating System
- Research OS coded in C++, architecture organized as frameworks of objects hierarchically classed by function, performance; customized by replacing subframeworks, objects; application interface is kernel objects exported via application/kernel protection l
- http://choices.cs.uiuc.edu/

Atomatrix
- Multithreaded execution system of atomic matrices with dynamic compiler, a network environment, and an object-oriented OS. Open source, BSD.
- http://atomatrix.sourceforge.net/

ShagOS
- Portable object-oriented microkernel OS, dynamically loaded device drivers, fully redesigned and rewritten many times in C++, runs on VAX, x86. Ongoing experiment in using O-O paradigm as framework for full OS, with distributed computing as main aspect in
- http://www.csh.rit.edu/~shaggy/shagos.html

Renaissance
- Multiprocessor OO OS purely designed and implemented in object-oriented techniques, to give application programs transparent access to system and remote objects distributed in a network of machines. OO programming is an ideal approach for building distrib
- http://www.cs.purdue.edu/AnnualReports/95/AR95Book-120.html

SOS: SOMIW Object-Oriented Operating System
- Most interesting research results: simple, generic, powerful object model; the concept of Fragmented Objects to structure distributed abstractions; developed flexible naming service, dynamic linking package, library of application oriented communication p
- http://www-sor.inria.fr/projects/sos/

Athene
- Next generation, commercial, kernel independent, all object and component based computing environment and OS that users can design to their specifications. Backend is built to run in almost any environment.
- http://www.rocklyte.com/athene/

Iguana Project
- Investigating use of object-orientation, computational reflection, and metaobject protocols (MOPs) to support dynamic customizing of (system) software.
- http://www.dsg.cs.tcd.ie/~coyote/

Apertos
- Object-oriented reflective OS, from Sony Computer Science Lab.
- http://www.csl.sony.co.jp/project/Apertos/