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| license = [[GPL v2]]<ref>{{cite web |url=https://github.com/ghaerr/elks/blob/master/LICENSE |title=LICENSE file on github|website=[[GitHub]] }}</ref>
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The '''Embeddable Linux Kernel Subset''' ('''ELKS'''), formerly known as '''Linux-8086''', is a [[Linux-like]] operating system [[kernel (operating system)|kernel]]. It is a subset of the [[Linux kernel]], intended for [[16-bit]] computers with limited processor and memory resources such as machines powered by [[Intel 8086]] and compatible [[microprocessor]]s not supported by [[32-bit]] [[Linux]].<ref>{{Cite book
<!-- DONE: add infos about elksemu, more details about current status?, check all links. Still TODO: running ELKS in dosemu (and maybe qemu and/or bochs), add infos from the FAQ and the "ELKS development tools" below, links to other usages? -->
==Features and compatibility==
ELKS is [[free software]] and available under the [[GNU General Public License]] (GPL). It can work with early [[16-bit]] (e.g. 8086, [[Intel 8088|8088]]) and many [[32-bit]] [[x86]] computers like [[IBM PC compatible]] systems, and later x86 models in [[real mode]]. Another useful area is [[single-board computer|single board microcomputers]], intended as educational tools for "[[wikt:homebrew|homebrew]]" projects (hardware [[Hacker (hobbyist)|hacking]]), as well as embedded controller systems (e.g. [[Automation]]).<ref name="Intro">[
Early versions of ELKS also ran on [[Psion Series 3#Psion Series 3a|Psion 3a]] and 3aR [[EPOC (operating system)#EPOC16|SIBO]] (SIxteen Bit Organiser) [[Personal Digital Assistant|PDA]]s with NEC [[NEC V20#Variants and successors|V30]] CPUs,<ref name="Intro"/><ref>{{cite web |url=http://www.elks.ecs.soton.ac.uk/sibo.php3 |title=Information on SIBO |accessdate=2014-03-02 |url-status=bot: unknown |archiveurl=https://web.archive.org/web/20011021222654/http://www.elks.ecs.soton.ac.uk/sibo.php3 |archivedate=October 21, 2001 }}</ref> providing another possible field of operation ([[gadget]] hardware), if ported to such a platform. This effort was called ELKSibo.<ref>{{cite web |url=http://www.mungewell.ndirect.co.uk/linux/ |title=Information on ELKSibo |accessdate=2014-03-02 |url-status=bot: unknown |archiveurl=https://web.archive.org/web/20050327202617/http://www.mungewell.ndirect.co.uk/linux/ |archivedate=March 27, 2005 }}</ref> Due to lack of interest, SIBO support was removed from version 0.4.0.
Native ELKS programs may run [[Emulator|emulated]] with Elksemu, allowing 8086 code to be used under Linux-i386.<ref>[http://linux.die.net/man/1/elksemu Elksemu man page]</ref> An effort to provide ELKS with an [[Eiffel (programming language)|Eiffel]] compliant [[Library (computing)|library]] also exists.<ref>[
==History==
Development of Linux-8086 started in 1995 by Linux kernel developers [[Alan Cox (computer programmer)|Alan Cox]] and Chad Page as a [[fork (software development)|fork]] of the standard Linux. By early 1996 the project was renamed ELKS (Embeddable Linux Kernel Subset), and in 1997 the first website<ref>{{Cite web |url=http://www.elks.ecs.soton.ac.uk/ |title=
On January 6, 2001, Cox declared ELKS "basically dead".<ref>January 6, 2001, {{cite web |url=
A development into FlightLinux, a [[Real-time computing|real-time]] operating system for [[spacecraft]], was planned, but the project it was intended for ([[UoSAT-12]]) eventually settled on the qCF operating system from Quadron Corporation instead.<ref>[http://www.spinics.net/lists/linux-8086/msg00264.html Linux-8086: Flight Linux]</ref>
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== Version 0.5.0 ==
Version 0.5.0 was another significant milestone for ELKS with a number of important improvements, additions and support for 2 new platforms - the Japanese [[PC-9800 series|PC-98]] and [[Intel 80186|
* Kernel and network debugging tools, [[toolchain]] improvements, cleanups to ease porting to new platforms
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* [[BASIC]] interpreter with demo programs
* Manual pages
* Expanded support for the new platforms - [[PC-9800 series|PC98]] and
* Kernel, library and networking fixes/enhancements
* New commands, such as [[tar (computing)|tar]], [[man page|man]] and [[compress (software)|compress]]
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