SuperDOS

http://www.bluebird.com/SuperDOS.htm

Multitasking, multiuser business OS; small (100K), integrated file system, low maintenance. Main purpose: fast business online transaction processing. Usually used in vertical markets such as transportation. Not a (unrelated to) DOS variant. By Bluebird Systems.

Keywords: cms, ecm, livelink, open text, wcm, business process management, collaboration software, compliance, compliance management, compliance software, compliance solution, content lifecycle management, content management software, content management solution, corporate governance, document lifecycle management, document management, document management software, enterprise collaboration, enterprise content management, extranets, intranets, knowledge management, knowledge management software, process management, project team collaboration, records management, regulatory compliance, sarbanes oxley compliance, sarbanes-oxley compliance, smart enterprise suite, web content management, workflow, workflow software

ORBit

http://www.labs.redhat.com/orbit/

A high-performance, lightweight CORBA ORB aiming for CORBA 2.2 compliance.

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Lineo, Inc.

http://www.lineo.com/products/rtxc_quadros/

Makes DR-DOS, and Embedix Linux, RTXC, RTXC Quadros preemptive multitasking RTOSs; and Embedix SDK, GPL Compliance Toolset, GUI Tools. Many of these are open source.

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Welcome to MimerDesk.org

http://www.mimerdesk.org/

MimerDesk is an open-source group environment designed for a wide variety of uses such as web-based eLearning, carrying out projects and setting up communities. MimerDesk also has tools for personal management. Standards compliance is also a big part of the project.

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Ianix OS

http://www.ian-space.com/ianix/

Goal: create multiboot-loadable Unix-like OS with Single Unix Specification v3 compliance, for Pentium 2+, written in Assembly, C. Descriptions, background, status, change log. [Open Source, GPL]

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Next Generation POSIX Threading

http://oss.software.ibm.com/developerworks/opensource/pthreads/

New threading library which attempts to solve the problems associated with the use of the pthreads library on Linux. It will add M:N threading capability and improve significantly on the POSIX compliance of pthreads.

Keywords: ibm, developer, open source, threads

ThrillOS

http://www.thrillos.com/

Experimental 32-bit multitasking, multithreaded OS, Unix-like inode based FS, runs on x86, growing POSIX compliance. Compiler, virtual machine for Thrill Mnemonic Language (TML), byte-code interpreted platform independent. Descriptions, documents, contact, downloads.

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