Enea AB is an information technology company with its headquarters in

Kista Kista ( is a district in the borough of Rinkeby-Kista, Stockholm, Sweden. It has a strategic position located in between Sweden's main airport, the Stockholm-Arlanda International Airport and central Stockholm, and alongside the main nationa ...

, Sweden, that provides

real-time operating system A real-time operating system (RTOS) is an operating system (OS) for real-time computing applications that processes data and events that have critically defined time constraints. A RTOS is distinct from a time-sharing operating system, such as Unix ...

s and consulting services. Enea, which is an

abbreviation An abbreviation () is a shortened form of a word or phrase, by any method including shortening (linguistics), shortening, contraction (grammar), contraction, initialism (which includes acronym), or crasis. An abbreviation may be a shortened for ...

of ''Engmans Elektronik Aktiebolag'', also produces the OSE operating system.

History

Enea was founded 1968 by Rune Engman as Engmans Elektronik AB. Their first product was an operating system for a defence computer used by the

Swedish Air Force The Swedish Air Force ( or just ) is the air force Military branch, branch of the Swedish Armed Forces. History The Swedish Air Force was created on 1 July 1926 when the aircraft units of the Army and Navy were merged. Because of the escalatin ...

. During the 1970s the firm developed compiler technology for the

Simula Simula is the name of two simulation programming languages, Simula I and Simula 67, developed in the 1960s at the Norwegian Computing Center in Oslo, by Ole-Johan Dahl and Kristen Nygaard. Syntactically, it is an approximate superset of AL ...

programming language A programming language is a system of notation for writing computer programs. Programming languages are described in terms of their Syntax (programming languages), syntax (form) and semantics (computer science), semantics (meaning), usually def ...

. During the early days of the European Internet-like connections, Enea employee Björn Eriksen connected Sweden to EUnet using

UUCP UUCP (Unix-to-Unix Copy) is a suite of computer programs and communications protocol, protocols allowing remote execution of commands and transfer of computer file, files, email and netnews between computers. A command named is one of the prog ...

, 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 TCP and the Swedish top domain .se was created in 1986.

Products

OSE

The ENEA OSE

first released in 1985. The Enea multi core family of

s was first released in 2009. The Enea Operating System Embedded (OSE) is a family of real-time,

microkernel In computer science, a microkernel (often abbreviated as μ-kernel) is the near-minimum amount of software that can provide the mechanisms needed to implement an operating system (OS). These mechanisms include low-level address space management, ...

embedded operating system An embedded operating system (EOS) is an operating system designed specifically for embedded computer systems. These systems aim to enhance functionality and reliability to perform dedicated tasks. When the multitasking method employed allows ...

created by Bengt Eliasson for ENEA AB, which at the time was collaborating with

Ericsson (), commonly known as Ericsson (), is a Swedish multinational networking and telecommunications company headquartered in Stockholm, Sweden. Ericsson has been a major contributor to the development of the telecommunications industry and is one ...

to develop a

multi-core A multi-core processor (MCP) is a microprocessor on a single integrated circuit (IC) with two or more separate central processing units (CPUs), called ''cores'' to emphasize their multiplicity (for example, ''dual-core'' or ''quad-core''). Ea ...

system using Assembly, 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 An asymmetric multiprocessing (AMP or ASMP) system is a multiprocessor computer system where not all of the multiple interconnected central processing units (CPUs) are treated equally. For example, a system might allow (either at the hardware or op ...

(AMP) and

symmetric multiprocessing Symmetric multiprocessing or shared-memory multiprocessing (SMP) involves a multiprocessor computer hardware and software architecture where two or more identical processors are connected to a single, shared main memory, have full access to all ...

(SMP). Enea OSE Multicore Edition offers both AMP and SMP processing in a hybrid architecture. OSE supports many processors, mainly

32-bit In computer architecture, 32-bit computing refers to computer systems with a processor, memory, and other major system components that operate on data in a maximum of 32- bit units. Compared to smaller bit widths, 32-bit computers can perform la ...

. These include the ColdFire,

ARM In human anatomy, the arm refers to the upper limb in common usage, although academically the term specifically means the upper arm between the glenohumeral joint (shoulder joint) and the elbow joint. The distal part of the upper limb between ...

PowerPC PowerPC (with the backronym Performance Optimization With Enhanced RISC – Performance Computing, sometimes abbreviated as PPC) is a reduced instruction set computer (RISC) instruction set architecture (ISA) created by the 1991 Apple Inc., App ...

, and MIPS based

system on a chip A system on a chip (SoC) is an integrated circuit that combines most or all key components of a computer or Electronics, electronic system onto a single microchip. Typically, an SoC includes a central processing unit (CPU) with computer memory, ...

(SoC) devices. The Enea OSE family features three OSs: ''OSE'' (also named ''OSE Delta'') for processors by

, and MIPS, ''OSE_ck'' for various DSP's, and ''OSE Epsilon'' for minimal devices, written in pure assembly (

, ColdFire, C166, M16C,

8051 The Intel MCS-51 (commonly termed 8051) is a single-chip microcontroller (MCU) series developed by Intel in 1980 for use in embedded systems. The architect of the Intel MCS-51 instruction set was John H. Wharton.. Intel's original versions w ...

). OSE is a closed-source proprietarily licensed software released on 20 March 2018. OSE uses

events Event may refer to: Gatherings of people * Ceremony, an event of ritual significance, performed on a special occasion * Convention (meeting), a gathering of individuals engaged in some common interest * Event management, the organization of eve ...

(or ''

signals A signal is both the process and the result of Signal transmission, transmission of data over some transmission media, media accomplished by embedding some variation. Signals are important in multiple subject fields including signal processin ...

'') in the form of messages passed to and from processes in the system. Messages are stored in a 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 Open source is source code that is made freely available for possible modification and redistribution. Products include permission to use and view the source code, design documents, or content of the product. The open source model is a decentrali ...

inter-process kernel design project named LINX.

Linux

Enea Linux provides an open, cross-development tool chain and runtime environment based on the Yocto Project embedded Linux configuration system.

Hypervisor

Enea

Hypervisor A hypervisor, also known as a virtual machine monitor (VMM) or virtualizer, is a type of computer software, firmware or hardware that creates and runs virtual machines. A computer on which a hypervisor runs one or more virtual machines is called ...

is also based on OSE microkernel technology and runs Enea OSE applications and takes as guests

Linux Linux ( ) is a family of open source Unix-like operating systems based on the Linux kernel, an kernel (operating system), operating system kernel first released on September 17, 1991, by Linus Torvalds. Linux is typically package manager, pac ...

Operating System and optionally semiconductor specific executive environments for bare-metal speed packet processing

Optima

Enea Optima development tool suite for developing, debugging, and profiling embedded systems software

The Element

middleware Middleware is a type of computer software program that provides services to software applications beyond those available from the operating system. It can be described as "software glue". Middleware makes it easier for software developers to imple ...

software for high-availability systems, based on technology developed by Equipe Communications Corp

Collaborative project and community memberships

Enea is a member of various collaborative projects and

open source Open source is source code that is made freely available for possible modification and redistribution. Products include permission to use and view the source code, design documents, or content of the product. The open source model is a decentrali ...

communities: *

Linux Foundation The Linux Foundation (LF) is a non-profit organization established in 2000 to support Linux development and open-source software projects. Background The Linux Foundation started as Open Source Development Labs in 2000 to standardize and prom ...

** Automotive Grade Linux ** Linux OPNFV **

Yocto Project The Yocto Project is a Linux Foundation collaborative open source project whose goal is to produce tools and processes that enable the creation of Linux distributions for embedded and IoT software that are independent of the underlying architect ...

Linaro Linaro Limited is an engineering organization that works on free and open-source software such as the Linux kernel, the GNU Compiler Collection (GCC), QEMU, power management, graphics and multimedia interfaces for the ARM family of instruction se ...

* Open Data Plane (ODP)

References

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