Submicrokernel (Operating Systems)

Submicrokernel Subs:

BRiX@ Forth@ Nemesis@ Oberon@ Object-Oriented@ PURE@ SPIN@ Self@

Self@ Smalltalk@ Squeak@ Stella@ TUNES@ Tao Intent@ ThreadX@ Vapour@

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Submicrokernel Sites:

dr'ex: SourceForge Information, news, forum, CVS, downloads. [Open Source, GPL] http://sourceforge.net/projects/drex/ Unununium Operating Engine Claimed as radical new approach to OSs: no-kernel, self-modifying cells (like objects); single address space, useful where memory and CPU power is low, and maybe for AI. Written in self-modifying, modular assembly language. [Open Source, BSD] http://uuu.sourceforge.net/ MIT Exokernel OS Puts applications in control, runs 10x or more faster. Exopc and XOK versions run on x86 PCs. ExOS library gives user-level extensible implementation of Unix OS, so most applications compile and run with no change. Download. [Open Source, MIT] http://www.pdos.lcs.mit.edu/exo.html dr'ex Kernel with architecture like exokernel but varies from such where simplicity can be had, coded in C/Assembly. Early development. [Open Source, GPL] http://drex.sourceforge.net/ TUNES Project: No-Kernel Unique description of operating systems without kernels, links. http://cliki.tunes.org/No-Kernel miray Software Makes µnOS: 72k microkernel on 8k nanokernel client/server architecture based on OOP framework, symmetric multithreading, multitasking, priority based scheduling, fully interruptible, separated address spaces, and full memory protection. Free download. http://www.miray.de/home/ Exokernel: An Operating System Architecture for Application-Level Resource Management Traditional OSs limit application performance, flexibility, functionality by fixing interfaces and implementations of OS abstractions such as interprocess communication and virtual memory. Exokernel address this via application-level management of physica http://citeseer.nj.nec.com/engler95exokernel.html Miranda: SourceForge Downloads, announcements, and a forum. Programming languages: Assembly, C, and C++. http://sourceforge.net/projects/miranda-os/ Elysium Main idea: enforce no abstractions, rather, have them as options, to all levels of system: hardware, kernel and file services, ways users interact with system; based on exo principles. Descriptions, news. [Open Source] http://elysium.sourceforge.net/ Miranda Planed features: Exokernel architecture, object-oriented, POSIX compliant, intuitive GUI, and best technologies: journaled main filesystems, LibOS modular library. Development documentation. [Open Source, LGPL] http://miranda-os.sourceforge.net/

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