Editing DNIX (section)

=== Inception at DIAB in Sweden ===
[[File:DIAB system binders.jpg|thumb|System binders for DIAB DS90 and D-NIX]]
Dataindustrier AB (literal translation: computer industries shareholding company) was started in 1970 by Lars Karlsson as a [[single-board computer]] manufacture in [[Sundsvall]], [[Sweden]], producing a [[Zilog Z80]]-based computer named ''Data Board 4680''.{{clarify|reason=Clearly they weren't producing a Z80-based computer in 1970, as the Z80 didn't exist in 1970.|date=March 2020}} In 1978, DIAB started to work with the Swedish television company [[Luxor AB]] to produce the home and office computer series [[ABC 80]] and [[ABC 800]].

In 1983 DIAB independently developed the first [[Unix]]-compatible machine, DIAB DS90 based on the [[Motorola 68000]] CPU. D-NIX here made its appearance, based on a [[UNIX System V]] license from [[AT&T Corporation]]. DIAB was however an [[industrial control system]] (automation) company, and needed a [[real-time operating system]], so the company replaced the AT&T-supplied UNIX [[Kernel (operating system)|kernel]] with their own in-house developed, yet compatible real-time variant. This kernel was inspired by a Z80 kernel named ''OS.8'' created for Monroe Systems division of [[Litton Industries]].<ref name="rskap5">{{cite book
 | last = Sjöström
 | first = Roland
 | title = Positionering under strategisk osäkerhet - Luxor Datorer och persondatorbranschen
 | series = Linköping Studies in Management and Economics, Dissertations no 30
 | volume = 2
 | year = 1996
 | publisher = Ekonomiska institutionen, Linköpings tekniska högskola
 | publication-place = Linköping
 | isbn = 91-7871-699-3
 | issn = 0345-7524
 | pages = 73–100
 | chapter = 1981 Introduktionen av ABC 800
 }}</ref><ref name="rskap6">{{cite book|chapter=1982 Ökad konkurrens och specialisering|first=Roland|isbn=91-7871-699-3|issn=0345-7524|last=Sjöström|pages=101–122|publication-place=Linköping|publisher=Ekonomiska institutionen, Linköpings tekniska högskola|series=Linköping Studies in Management and Economics, Dissertations no 30|title=Positionering under strategisk osäkerhet - Luxor Datorer och persondatorbranschen|volume=2|year=1996}}</ref>

Over time, the company also replaced several of the UNIX standard userspace tools with their own implementations, to the point where no code was derived from UNIX, and their machines could be deployed independently of any AT&T UNIX license. Two years later and in cooperation with Luxor, a computer called [[ABC 1600]] was developed for the office market, while in parallel, DIAB continue to produce enhanced versions of the DS90 computer using newer versions of the Motorola CPUs such as [[Motorola 68010]], [[Motorola 68020|68020]], [[Motorola 68030|68030]] and eventually [[Motorola 68040|68040]]. In 1990 DIAB was acquired by [[Groupe Bull]] who continued to produce and support the DS machines under the brand name ''DIAB'', with names such as ''DIAB 2320'', ''DIAB 2340'' etc., still running DIABs version of DNIX.<ref>[http://www.df.lth.se/~triad/diab/ Historien om DIAB – Dataindustrier AB]</ref>