View source for ENEA AB

{{short description|Global information technology company}}
{{Multiple issues|
{{Notability|Companies|date=September 2020}}
{{More citations needed|date=September 2020}}
{{Primary sources|date=September 2020}}
{{Unreliable sources|date=September 2020}}
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{{Infobox company
| name = Enea AB
| logo = ENEA_AB_logo.svg
| type = [[Aktiebolag]]
| traded_as = {{OMX|SSE1149|ENEA}}
| foundation = [[Sweden]] (1968)
| location_city = [[Kista]]
| key_people = Kjell Duveblad, Chairman of Board<br /> 
Teemu Salmi, President and CEO
| equity = 1,481 million SEK
| num_employees = 650
| industry = [[Software development]]
| products = Software for telecommunication and cybersecurity
| revenue = 920 million SEK
| operating_income = 122 million SEK
| net_income = 143 million SEK
| homepage = {{URL|www.enea.com}}
| footnotes = <ref>{{Cite web | title=Reuters| url=https://www.reuters.com/markets/companies/ENEA.ST/financials/income-annual | access-date=2025-08-24}}</ref>
}}

'''Enea AB''' is an information technology company with its headquarters in [[Kista]], Sweden, that provides [[real-time operating system]]s and consulting services. Enea, which is an [[abbreviation]] of ''Engmans Elektronik Aktiebolag'', also produces the OSE operating system.

==History==
Enea was founded 1968 by Rune Engman as '''En'''gmans '''E'''lektronik '''A'''B.  Their first product was an operating system for a defence computer used by the [[Swedish Air Force]].  During the 1970s the firm developed compiler technology for the [[Simula]] [[programming language]].

During the early days of the European Internet-like connections, Enea employee [[Björn Eriksen]] connected Sweden to [[EUnet]] using [[UUCP]], and registered ''enea'' as the first Swedish domain in April 1983.  The domain was later converted to the internet domain ''enea.se'' when the network was switched over to [[Transmission Control Protocol|TCP]] and the Swedish top domain .se was created in 1986.<ref>{{Cite web | title=Internetstiftelsen| url=https://internetstiftelsen.se/|access-date=2020-09-04| website=Internetstiftelsen| language=sv-SE}}</ref><ref>{{Cite web | title=Internetstiftelsen| url=https://internetstiftelsen.se/| access-date=2020-09-04| website=Internetstiftelsen| language=sv-SE}}</ref>

==Products==
===OSE===
{{Anchor|Operating System Embedded}}
{{Infobox OS
| name = Operating System Embedded (OSE)
| logo = <!-- Filename only: no wikilink, Image: or File: -->
| logo caption = 
| logo alt = 
| screenshot = <!-- Filename only: no wikilink, Image: or File: -->
| caption = 
| screenshot alt = 
| developer = Enea AB
| family = [[POSIX]] file system
| working state = Current
| source model = [[Closed-source]]
| released = {{Start date and age|1985}}<!-- If known, add |mm|dd|df=yes -->
| latest release version = OSE Multicore Edition
| latest release date = {{Start date and age|2020|09|22|df=yes}}
| marketing target = [[Embedded system]]s
| programmed in = [[Assembly language|Assembly]], [[C (programming language)|C]], [[C++]]
| language = English
| update model = 
| supported platforms = [[ARM architecture|ARM]], [[ColdFire]], [[PowerPC]], [[MIPS architecture|MIPS]]
| kernel type = [[Microkernel]]
| userland = 
| ui = [[Command-line interface]]
| license = [[Proprietary software|Proprietary]]
| preceded by = 
| succeeded by = 
| website = {{URL|www.enea.com}}
| other articles = 
}}

The ENEA OSE [[real-time operating system]] first released in 1985.<ref>{{Cite web |title=Enea's history |date=25 November 2021 |url=https://www.enea.com/company/about-enea/history |access-date=2022-05-30}}</ref>

The Enea multi core family of [[real-time operating system]]s was first released in 2009.<ref>{{Cite web |last=Dawson |first=Carolyn J. |date=22 September 2009 |title=Enea Launches Enea OSE Multicore Edition |url=http://technews.tmcnet.com/ipcommunications/topics/ip-communications/articles/64900-enea-launches-enea-ose-multicore-edition.htm |website=TMC Net |access-date=2021-09-02}}</ref>

The Enea Operating System Embedded (OSE) is a family of real-time, [[microkernel]], [[embedded operating system]] created by Bengt Eliasson for ENEA AB, which at the time was collaborating with [[Ericsson]] to develop a [[Multi-core processor|multi-core]] system using [[Assembly language|Assembly]], [[C (programming language)|C]], and [[C++]]. Enea OSE Multicore Edition is based on the same microkernel architecture. The kernel design that combines the advantages of both traditional [[asymmetric multiprocessing]] (AMP) and [[symmetric multiprocessing]] (SMP). Enea OSE Multicore Edition offers both AMP and SMP processing in a hybrid architecture. OSE supports many processors, mainly [[32-bit computing|32-bit]]. These include the [[ColdFire]], [[ARM architecture|ARM]], [[PowerPC]], and [[MIPS architecture|MIPS]] based [[system on a chip]] (SoC) devices.

The Enea OSE family features three OSs: ''OSE'' (also named ''OSE Delta'') for processors by [[ARM architecture|ARM]], [[PowerPC]], and [[MIPS architecture|MIPS]], ''OSE<sub>ck</sub>'' for various DSP's, and ''OSE Epsilon'' for minimal devices, written in pure assembly ([[ARM architecture|ARM]], [[ColdFire]], [[C166]], [[M16C]], [[8051]]). OSE is a closed-source [[Proprietary software|proprietarily licensed software]] released on 20 March 2018. OSE uses [[Event (computing)|events]] (or ''[[Signal programming|signals]]'') in the form of messages passed to and from [[Computer process|processes]] in the system. Messages are stored in a [[Queue (abstract data type)|queue]] attached to each process. A ''link handler'' mechanism allows signals to be passed between processes on separate machines, over a variety of transports. The OSE signalling mechanism formed the basis of an [[open-source software|open-source]] inter-process kernel design project named LINX.<ref name="Luecke2013">{{cite book |last=Luecke |first=Kenn |date=2013 |title=Real World Multicore Embedded Systems: Chapter 10. Tools |publisher=Elsevier |isbn=978-0-12-807344-5 |url=https://books.google.com/books?id=3KJzDAAAQBAJ&q=%22LINX%22+IPC+-wikipedia&pg=PP14 |access-date=17 September 2020 |language=en}}</ref>

==Collaborative project and community memberships==
Enea is a member of various collaborative projects and [[Open-source model|open source]] communities:
* [[Linux Foundation]]
** [[Automotive Grade Linux]]
** Linux [[OPNFV]]
** [[Yocto Project]]
* [[Linaro]]
* [[OpenDataPlane|Open Data Plane (ODP)]]

==References==
{{Reflist}}

{{Real-time operating systems}}
{{Microkernel}}

{{DEFAULTSORT:Enea Ab}}
[[Category:Information technology companies of Sweden]]
[[Category:Companies based in Stockholm]]
[[Category:Real-time operating systems]]
[[Category:Embedded operating systems]]
[[Category:ARM operating systems]]
[[Category:Microkernel-based operating systems]]
[[Category:Companies listed on Nasdaq Stockholm]]