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PSOS (real-time operating system): Difference between revisions

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Template:Infobox OS parameters: updates, spaces standardize, conform to master templates. WP:LINKs add. Small WP:COPYEDITs WP:EoS WP:TERSE. MOS:FIRSTABBReviations define before WP:ABBRs in parentheses.
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{{Anchor|SCG|ISI}}
{{Infobox OS
| name = pSOS
| logo =
| screenshot =
| caption =
| developer = Alfred Chao, Software Components Group (SCG)<br/>[[Integrated Systems Inc.]] (ISI)<br/>[[Wind River Systems]]
| source model = [[Closed source]] (original)<br/>[[Open source]] (later variants)
| kernel type = [[Real-time operating system|Real-time]] [[Monolithic kernel|monolithic]]
| supported platforms = [[Motorola 68000 series]]
| ui =
| family =
| released = {{Start date and age|1982}}
| latest release version = Reliant (RoweBots)
| latest release date = {{Start date and age|2007|08}}
| marketing target = [[Embedded system]]s
| programmed in = 68000 [[assembly language]]
| language = English
| update model =
| package manager =
| working state = Discontinued
| license = [[Proprietary software|Proprietary]]
| website =
}}
 
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In about 1991, Software Components Group was acquired by [[Integrated Systems Inc.]] (ISI) which further developed pSOS, then renamed as pSOS+, for other microprocessor families, by rewriting most of it in the [[programming language]] [[C (programming language)|C]]. Attention was also paid to supporting successively more [[integrated development environment]]s, culminating in pRISM+.
 
In July 1994, [[Integrated Systems Inc.]]ISI acquired [[Digital Research]]'s modular real-time multi-tasking operating system [[FlexOS]] from [[Novell]].<ref name="pNDE"/>
 
In 1995, [[Integrated Systems Inc.]]ISI offered a <code>pSOSystem/NEST</code> package for [[Novell Embedded Systems Technology|Novell's Embedded Systems Technology]] (NEST).<ref name="Novell_1995_NEST"/><ref name="pNDE"/>
 
In February 2000, [[Integrated Systems Inc.]]ISI was acquired by [[Wind River Systems]], the originators of the rival RTOS [[VxWorks]]. Despite initial reports that pSOS support would continue, development was halted. Wind River announced plans for a 'convergence' version of VxWorks which will support pSOS system calls, and that no further releases of pSOS will occur.
 
[[NXP Semiconductors]] acquired pSOS for [[TriMedia (mediaprocessor)|TriMedia]] from Wind River and continued to support this OS for the TriMedia [[very long instruction word]] (VLIW) core.<!-- Likely not after 2010, when NXP's TriMedia group was terminated. -->
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Popular ''Secure Sockets Layer'' (SSL), now ''[[Transport Layer Security]]'' (TLS), libraries such as [[wolfSSL]] still support pSOS.
 
== See also ==
* [[FlexOS]]
* [[Novell Embedded Systems Technology]] (NEST)
* [[MapuSoft Technologies Inc.]]
* [[UNIX System V STREAMS]]
 
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