Recaro

. . Recaro seats are also used in the Leopard 2 MBT. This lineage is made clear in Cutler's foreword to Inside Windows NT, quoted on Neil Rieck's "Windows-NT" is "VMS re-implemented" page. Meanwhile, Recaro seats were seeing applications in a variaty of cars from the Aston Martin V03 to the Audi S series and RS Series, to the Beetle RSI, as well as the addition of the side Airbag seat to the Recaro Product line. Microsoft's Windows NT system is a distant descendent of RSX-11M but is more directly descended from an object-oriented operating system Cutler developed for a RISC processor (PRISM) which was never released. Their operations went world wide as they established Recaro North America, Recaro UK, Recaro South East Asia in Kuala Lumpur, Malaysia and Recaro France in Mont Saint Algnan. Principles first tried in RSX-11M later appeared in DEC's VMS.

The 1990s was a period of great change for Recaro.
Dave Cutler was the project leader for RSX-11M, which was an adaptation of the earlier RSX-11D for a smaller memory footprint. In 1983, Keiper purchases all shares in Recaro and establishes Keiper Recaro GmbH & Co. It existed in many versions:. In 1969, The Ruetters family sells their ownership of Recaro to three companies, Keiper, Huber & Wagner, and Metzeler after facing economic problems. RSX-11: A family of real-time operating systems mainly for PDP-11 computers created by Digital Equipment Corporation (DEC), common in the late 1970s and early 1980s, designed for and much used in process control, but also popular for program development. The company begins producing both production seats for Porsche and a seperate line of seats for re-fits into any car. The IAS light pattern was a single bar of lights that swept leftwards.

In 1963 Porsche takes over management of the entire company and renames it Recaro GmbH & Co, changing the company focus to producing top quality seats for Porsche vehicles, and the company ceases producing Vehicle Bodies entirely. The RSX-11M light pattern was two sets of lights that swept outwards to the left and right from the center of the light display (or inwards if the IND indirect command file processor program was currently running). New car manufacturing methods reduce the size of the car body market in the 1950s, and Reutter finds itself on hard times. When run on certain PDP-11 processors, each version of RSX displayed a characteristic light pattern on the front of the processor any time the system was idle (and the processor was executing the PDP-11 WAIT instruction). In 1930 they started producing bodies for the Volkswagen Beetle, and in 1949 had a huge break though when Porsche started using their bodies for their sports cars. Before DCL, the usual RSX prompt was ">" or "MCR>", standing for the "Monitor Console Routine". Founded in 1906 as a car body producer, the company (named Reutter at the time for it's founder Wilhelm Reutter) made a name for itself producing Limousine bodies in the 1920s. For several years, the top item on the wishlist was "same day service".

. Outside the office of the engineer in charge of ongoing maintenance of the taskbuilder was a whiteboard labeled "Taskbuilder wishlist". Recaro is a German company based in Stuttgart, well known for their bucket seats and commonly contracted to produce upgraded racing style seats for all the sporty cars built by the Volkswagen Group as well as many other manufacturers. If the overlay scheme was especially complex, taskbuilding could take a rather long time. "Recaro Company History Timeline". In order to support large programs within the PDP-11's relatively small virtual address space of 64 KB, a sophisticated semi-automatic overlay system was used; for any given program, this overlay scheme was produced by RSX's taskbuilder program (called TKB). The operating system and utilities were to run on the entire line of PDP-11 platforms, from the very small systems up through the PDP-11/70 which had memory-mapping hardware and supported up to 4 MB of memory." -- David Cutler, foreword to Inside Windows NT.

a multitasking operating system that would run in 32 KB of memory with a hierarchical file system, application swapping, real-time scheduling, and a set of development utilities. .. "My first operating system project was to build a real-time system called RSX-11M that ran on Digital's PDP-11 16-bit series of minicomputers. "RSX was a separate path at DEC and the progenitor more than anything of VMS that went to NT via Dave Cutler." -- Gordon Bell, Vice President, Research and Development, Digital Equipment Corporation.

OSRV and RSX driver interfaces are different & incompatible. That happened because of better work by the RSX-11' re-coders, stability of patched RSX, and a faster update cycle for SM-RSX drivers & patches, made possible by the SM users community. (OSRVM is the next model of OSRV-SM for the SM-1425.) But RSX11M 'patched' for the SM's processor was used more often than rewritten OSRV. But, there are differences between RSX and OSRV because of differences between SM and PDP' hardware and recognised by Soviet engineers bugs in RSX.

Not surprisingly, the six-character string 'OSRVSM' fits nicely in the same 16-bit RADIX-50 word as 'RSX11M'. If read as Cyrillic, the name OSRV is an abbreviation for 'Operatsionnaya Sistema Realnogo(Razdelenija) Vremeni' -- Russian for 'Real Time(Time dividing) Operating System'. According to other sources, RSX-11M source code might have been stolen by the KGB. This system appeared to be an exact duplicate of RSX-11M save that the prompt was changed in the binary files.

DOS/RV, OSRV-SM -- Two names for the clandestine clone of RSX-11M that was produced behind the Iron curtain. P/OS -- A version of RSX-11M-Plus that was targeted to DEC's PRO-325, PRO-350, and PRO-380 line of PDP-11-based personal computers. Micro/RSX -- a stripped-down version implemented specifically for the Micro PDP-11, a low-cost multi-user system in a box, featuring ease of installation, no system generation, and a special documentation set. Derived from RSX-11S.

RSX-20F --11/40 front end processsor operating system for the DEC KL10 processor. The first version of RSX to include DCL (Digital Command Language). RSX-11M-Plus -- a much extended version of RSX-11M, originally designed to support the multi-processor PDP-11/74, a computer that was never released, but also used widely as a standard operating system on the PDP-11/70. RSX-11S -- a memory-resident version of RSX-11M used in embedded real-time applications.

RSX-11M -- a multiuser version that was popular on all PDP-11s. RSX-11/D -- evolved into IAS. RSX-11/B programs used DEC DOS macros to perform disk I/O. To start up the system, first DEC DOS was booted, and then RSX-11/B was started.

RSX-11/B -- small real time executive based on RSX-11/C with support for disk I/O. RSX-11/A, C -- small paper tape real time executives.