Operating System Embedded: Difference between revisions

Revision as of 14:19, 22 May 2009

Revision as of 08:36, 29 June 2009

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The '''Operating System Embedded''' (mostly known under the [[acronym]] '''OSE''') is a [[real-time operating system|real-time]] [[embedded operating system]] created by the [[Sweden|Swedish]] information technology company [[ENEA AB|ENEA]]. [[Bengt Eliasson]], who at the time was a consultant from ENEA with an assignment at [[Ericsson]], wrote the basic parts of the [[kernel (computer science)|kernel]]. The early version for the [[Zilog Z80]] processor was named OS80.

OSE uses ''[[signalEvent (computing)|signalingevents]] (named ''[[Signal programming|signals]]'' due to ENEA's Telecomms background) in the form of messages passed to and from [[computer process|processes]] in the system. Messages are stored in a [[Queue (data structure)|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]] [[inter-process communication]] project called [[LINX (IPC)| LINX]] .

The system exists in several revisions named ''OSE'' for [[ARM architecture|ARM processors]], [[PowerPC]] and [[MIPS architecture|MIPS]], ''OSE_ck'' for various DSP's and ''OSE Epsilon'' for minimal devices(written 100% in assembly).