2445:
1252:
to the left and right from the center of the console (inwards if the IND indirect command file processor program was currently running on older versions of RSX). By contrast, the IAS light pattern was a single bar of lights that swept leftwards. Correspondingly, a jumbled light pattern (reflecting memory fetches) is a visible indication that the computer is under load (and the idle task is not being executed). Other PDP-11 operating systems such as RSTS/E have their own distinctive patterns in the console lights.
951:, an Irish firm specializing in PDP-11 hardware and software support. In 2006 Mentec Inc. was declared bankrupt while Mentec Ltd. was acquired by Irish firm Calyx in December 2006. The PDP-11 software, which was owned by Mentec Inc. was then bought by XX2247 LLC, which is the owner of the software today. It is unclear if new commercial licenses are possible to buy at this time. Hobbyists can run RSX-11M (version 4.3 or earlier) and RSX-11M Plus (version 3.0 or earlier) on the
3290:
4249:
3300:
4239:
1192:-fixing done by Soviet engineers. However, the original RSX-11M was more used than its Russian clone ОСРВ, because the programmers modifying the original RSX-11M code were doing a better job, and patched RSX was more stable than ОСРВ. Other benefits included a faster update cycle for drivers and a larger choice of patches, made possible by a wider user community.
48:
3310:
264:"At first I called the new system DEX-15. It was an acronym for 'Digital's Executive - for the PDP-15.' The homonymic relation between DEC, DEX and deques (used as the primary linkage mechanism in the kernel) appealed to my sense of whimsy. People readily adopted the acronym without question.
1051:
feature of some PDP-11 models to put executable code and data into separate address spaces. This also allowed programs to run faster, as it reduced the need for "overlays", in which you could overlay object modules at task build time, for very large programs. Overlays were specified in a task build
1251:
When run on certain PDP-11 processors, each DEC operating system displays a characteristic light pattern on the processor console panel when the system is idle. These patterns are created by an idle task running at the lowest level. The RSX-11M light pattern is two sets of lights that sweep outwards
282:
Bob sat back in silence as I kept looking at each acronym, seeing how it flowed off my tongue, what impression it gave me, and most importantly, the overall feeling about it. After three or four minutes a strong feeling came over me about one of them. It really felt right. I looked
271:
So I sat down with pencil and paper, and in a few moments came up with better than a dozen candidate acronyms and names. My purpose was to come up with a good acronym and then find some appropriate words to justify it. For example, X always appealed to me as part of an acronym because it
267:
But in a short time I was asked to submit the choice to the corporate legal department for a trademark search and registration. They sent me a memo that DEX was already trademarked by some paper company and I would have to rename the product. I pointed out to them that software and paper
1243:
The standard RSX prompt is ">" or "MCR>", (for the "Monitor
Console Routine". All commands can be shortened to their first three characters when entered and correspondingly all commands are unique in their first three characters. Only the login command of "HELLO" can be executed by a user not
1046:
RSX-11M-Plus also ran on PDP-11/44, PDP-11/84, PDP-11/94 (Unibus machines), as well as PDP-11/73, PDP-11/83, and PDP-11/93 (Qbus machines). One of the advantages of RSX-11M-Plus over RSX-11M was that larger programs could be created. This was achieved by having the task builder (the linker) build
376:
Below are estimated release dates for RSX-11 and IAS. Data is taken from the printing date of the associated documentation. General availability date is expected to come closely after. When manuals have different printing dates, the latest date is used. RSX-11S is a proper subset of RSX-11M, so
286:
I have absolutely no memory about the other candidate acronyms. They are lost forever, I suppose. Well, maybe there's just a chance that the legal department kept copies of the correspondence - after all they are lawyers and they seem to hold on to everything (especially my money).
278:
Bob Decker and I met in my office one afternoon to discuss the choice. Bob was a marketeer who worked for me. I chalked all the candidates on the blackboard and we started going through them one by one, pronouncing each out loud, savoring the sound, trying to get the feel of each
302:
The porting effort first produced small paper tape based real-time executives (RSX-11A, RSX-11C) which later gained limited support for disks (RSX-11B). RSX-11B then evolved into the fully fledged RSX-11D disk-based operating system, which first appeared on the
974:), so the current owner cannot be firmly established. No new commercial licenses have been issued since at least October 1979 (RSX-11A, RSX-11B, RSX-11C) or 1990 (IAS), and none of these operating systems have ever been licensed for hobbyist use.
1216:
operating system. RSX-11 provided features to ensure better than a maximum necessary response time to peripheral device input (i.e. real-time processing), its original intended use. These features included the ability to lock a process (called a
1188:'Real-time Operating System'. This system appears to be an exact duplicate of RSX-11M except a different header in binary files. Differences between RSX and ОСРВ are due to hardware differences between SM and PDP computers and to
939:
process. The notable exception to this rule is Micro-RSX, which came with a pre-generated autoconfiguring binary kernel. Full sources was available as a separate product to those who already had a binary license, for reference purposes.
356:(project leader 1972–1976) the system was redesigned and saw its first commercial release. Support for the 22-bit PDP-11/70 system was added. Wolfendale, originally from the UK, also set up the team that designed and prototyped the
377:
release dates are always assumed to be the same as the corresponding version of RSX-11M. On the other side, RSX-11M Plus is an enhanced version of RSX-11M, so it is expected to be later than the corresponding version of RSX-11M.
1041:– a much extended version of RSX-11M, originally designed to support the multi-processor PDP-11/74, a computer that was never released, but RSX-11M-Plus was then used widely as a standard operating system on the PDP-11/70.
272:
is pronounced so forcefully, inferring (at least to me) some power and drama. I used a lot of X's. These potential acronyms were submitted back to the legal department. At the time I had no favorite.
1071:– a pre-generated full version of RSX-11M-Plus with hardware autoconfiguration, implemented specifically for the Micro/PDP-11s, a low-cost multi-user system in a box, featuring ease of installation, no
2392:
3346:
2346: (archived April 4, 2005) - contains documents which trace RSX-11 back through RSX-15 and the real time executive written by John Neblett in the late 1950s for the
1770:
Selected customers were testing the system at least since June 1974, because preliminary documentation contains a standard DEC license with a 1973 copyright date. See:
1244:
yet logged in. "HELLO" was chosen as the login command because only the first three characters, "HEL", are relevant and this allows a non-logged in user to execute a "
290:
Oh, by the way, the acronym stood for 'Real-Time System
Executive.' Years later that was changed to 'Resource Sharing Executive,' which I think is even better.
1877:
1221:
under RSX) into memory as part of system boot up and to assign a process a higher priority so that it would execute before any processes with a lower priority.
1798:
2385:
2360:
4243:
3339:
1773:
283:
at Bob and announced, "It's RSX". I went to the board and erased all the rest until the only writing left was RSX. It even looked right.
1370:
4295:
275:
In a week or so they came back with a subset of my list that they could accept as trademarks. It was left to me to make the final choice.
3313:
3303:
2378:
931:
is asserted in binary files, source code and documentation alike. It was entirely developed internally by
Digital. Therefore, no part of it is
2268:
1340:
322:, giving birth to RSX-11M, first released in 1973. From 1971 to 1976, the RSX-11M project was spearheaded by noted operating system designer
4280:
4253:
3332:
3001:
2433:
2225:
1005:. To start up the system, first DOS-11 was booted, and then RSX-11B was started. RSX-11B programs used DOS-11 macros to perform disk I/O.
1754:
1535:
213:. In widespread use through the late 1970s and early 1980s, RSX-11 was influential in the development of later operating systems such as
3075:
2094:
1019:– a timesharing-oriented variant of RSX-11D released at about the same time as the PDP-11/70. The first version of RSX to include DCL (
4021:
3080:
3021:
2968:
1144:
architecture, the
Russians and their allies sometimes significantly modified Western designs, and therefore many SM EVM machines were
4056:
2364:
2333:
1035:– a memory-resident version of RSX-11M used in embedded real-time applications. RSX-11S applications were developed under RSX-11M.
1603:
While
Windows NT system is in some areas a conceptual descendant of RSX-11M and VMS, its architecture descends directly from the
2329:
3833:
3215:
2285:
4275:
4010:
2835:
1015:
357:
4108:
3870:
3105:
2401:
1675:
210:
70:
2126:
2020:
3498:
3195:
2902:
2453:
2069:
1212:
RSX-11 was often used for general-purpose timeshare computing, even though this was the target market for the competing
1065:– Customized version of RSX-11M, to be run on PDP-11/40 front end processor operating system for the DEC KL10 processor
3411:
3253:
3200:
2983:
2945:
2790:
1477:
1109:
countries, was more practical than pursuing original designs. Cloning of DEC designs began in 1974, under the name of
1082:
365:
342:
253:
minicomputer, first released in 1971. The main architect for RSX-15 (later renamed XVM/RSX) was Dennis “Dan” Brevik.
4101:
3355:
3230:
3016:
971:
202:
3981:
3748:
3616:
3516:
3264:
2043:
1822:
1637:"RSX was a separate path at DEC and the progenitor more than anything of VMS that went to NT via Dave Cutler." —
1145:
326:, then at his first project. Principles first tried in RSX-11M appear also in later designs led by Cutler, DEC's
108:
1427:
345:
a derivative of RSX-11M, called RSX-20F, was developed to run on the PDP-11/40 front-end processor for the KL10
4133:
4095:
3801:
2927:
1266:
1020:
171:
2444:
1654:
1583:
1331:
William Y. Young; Donald P. Svrcek; Brent R. Mahoney (2014). "1: A Brief
History of Control and Simulation".
1240:). If the overlay scheme was especially complex, taskbuilding could take a rather long time (hours to days).
3969:
3528:
3452:
3248:
1731:
1356:
2202:
1902:
1852:
958:
Legal ownership of RSX-11A, RSX-11B, RSX-11C, RSX-11D, and IAS never changed hands; therefore it passed to
935:. However a copy of the kernel source is present in every RSX distribution, because it was used during the
4290:
4140:
4063:
3220:
2785:
2533:
2528:
2339:
2245:
1296:
175:
3827:
3719:
3293:
2460:
2180:
1310:
1229:
1613:
2255:. IFIP Advances in Information and Communication Technology. Vol. 357. Springer. pp. 69–73.
353:
4232:
4027:
3643:
3210:
2978:
2882:
932:
924:
187:
77:
31:
3070:
2815:
2469:
1974:
1183:
1131:
1048:
2212:. IFIP International Federation for Information Processing. Vol. 215. Springer. p. 157.
312:
4129:
3625:
2937:
1997:
1405:
1090:
1700:
1335:(3 ed.). Chichester, West Sussex, United Kingdom: John Wiley & Sons Inc. pp. 1–2.
1952:
4176:
3844:
3047:
2630:
2264:
2221:
1924:
1336:
1072:
936:
3928:
3364:
3085:
2770:
2256:
2213:
1579:
1197:
1174:
1157:
1122:
1114:
319:
182:
4285:
3759:
3439:
2993:
2421:
2343:
2099:
2041:
Products no longer appeared on
Digital PDP-11 System Software Catalogue issued Oct. 1979:
1225:
963:
943:
Ownership of RSX-11S, RSX-11M, RSX-11M Plus and Micro/RSX was transferred from
Digital to
229:
1558:
4181:
3692:
3571:
3566:
3090:
2957:
2951:
2511:
1245:
1102:
164:
4269:
3937:
3685:
3556:
3324:
3135:
948:
944:
293:...And that is how RSX got its name, on the 3rd floor of building 5 in the old mill."
104:
2291:
4201:
4196:
3543:
3504:
3130:
3026:
2973:
2872:
2311:
Not surprisingly, the six-character string 'OCPBCM' fits nicely in the same 16-bit
2152:
1929:
1189:
1170:
1002:
947:
in March 1994 as part of a broader agreement. Mentec Inc. was the US subsidiary of
361:
1232:
system was used; for any given program, this overlay scheme was produced by RSX's
268:
mills didn't seem to have a hell of a lot of connection, but they wouldn't budge.
2217:
360:(IAS) operating system in the UK; IAS was a variant of RSX-11D more suitable for
4224:
4186:
4081:
3951:
2595:
2590:
2585:
2579:
2575:
2568:
2563:
2558:
2427:
2370:
2260:
1717:
1638:
1393:
1204:-made CORAL series family of computers (such as CORAL 2030, a clone of PDP-11).
1023:), which in IAS is known by its original name, PDS (Program Development System).
323:
279:
one. After ten minutes or so we had narrowed down the selection to three.
232:
a major use. It was also popular for program development and general computing.
4168:
4049:
3916:
3188:
2963:
1397:
1141:
335:
218:
199:
65:
30:
This article is about the operating system family. For other uses of RSX, see
2203:"Computing Behind the Iron Curtain and Beyond Hungarian National Perspective"
4191:
4069:
4043:
3963:
3787:
3577:
3385:
3161:
3065:
3036:
2922:
2616:
2611:
2550:
2415:
1608:
928:
308:
304:
228:
name suggests, RSX was designed (and commonly used) for real time use, with
1641:, Vice President, Research and Development, Digital Equipment Corporation.
1484:
1136:'System of Small electronic computing machines'). As happened with
318:
While RSX-11D was being completed, Digital set out to adapt it for a small
47:
4075:
4015:
3957:
3664:
3561:
3522:
3491:
3400:
3172:
2912:
2907:
2867:
2646:
2506:
2488:
2483:
2351:
2347:
2312:
1604:
966:
in 2002. In late 2015 Hewlett-Packard split into two separate companies (
331:
82:
56:
1452:
1224:
In order to support large programs within the PDP-11's relatively small
4158:
4152:
4119:
4114:
4004:
3975:
3944:
3922:
3859:
3820:
3795:
3774:
3728:
3706:
3445:
3225:
3110:
3060:
3055:
3006:
2892:
2852:
2847:
2795:
1509:
1201:
1106:
967:
327:
214:
147:
17:
1903:"Press release: Digital and Mentec announce PDP-11 Software Agreement"
3996:
3899:
3873:
3741:
3734:
3699:
3658:
3652:
3472:
3463:
3427:
3405:
3258:
3178:
3166:
3031:
2862:
2857:
2825:
2800:
2742:
1713:
1271:
1213:
1137:
1110:
1086:
959:
955:
emulator thanks to a free license granted in May 1998 by Mentec Inc.
346:
250:
246:
206:
157:
137:
1404:(Interview). Interviewed by Grant Saviers. Computer History Museum.
1169:– Three names for an unauthorised clone of RSX-11M produced in the
1101:
In 1968, the Soviet
Government decided that manufacturing copies of
1075:, and a special documentation set. Later superseded by RSX-11M Plus.
352:
Meanwhile, RSX-11D saw further developments: under the direction of
1537:
DIGITAL EQUIPMENT CORPORATION - Nineteen Fifty-Seven To The
Present
1001:– small real time executive based on RSX-11C with support for disk
4088:
3892:
3601:
3510:
3375:
3275:
3270:
3243:
3235:
3205:
3183:
3156:
3100:
3095:
3011:
2917:
2897:
2842:
2820:
2805:
2780:
2760:
2754:
2748:
2736:
2731:
2726:
2720:
2715:
2710:
2704:
2699:
2694:
2689:
2684:
2679:
2674:
2668:
1276:
311:
in early 1973. The project leader for RSX-11D up to version 4 was
86:
245:
RSX-11 began as a port to the PDP-11 architecture of the earlier
4146:
4039:
3853:
3768:
3632:
3595:
3394:
3140:
3125:
3120:
3115:
2810:
2663:
2658:
2652:
2640:
2540:
2521:
2516:
952:
53:
3328:
2374:
2095:"Digital's Professional 300 Series / A Minicomputer Goes Micro"
1662:
For these reasons, RSX-11M was chosen as the basis for RSX-20F.
4033:
3876:
3811:
3676:
3433:
2498:
1261:
1607:
operating system, which Cutler developed for the unreleased
1878:"Notice of Copyright Change for PDP-11 Software Products"
1378:
RSX-11 M/FEP and the FRP (FORTRAN Real-Time Package) ...
2356:
1011:– a multiuser disk-based system, later evolved into IAS
2021:"Hewlett-Packard splits in two today, now what ?"
1953:"Mentec Hobbyist license for PDP-11 operating systems"
1728:
Data from the labels of the distribution paper tapes.
1081:– A version of RSX-11M-Plus that was targeted to the
1029:– a multiuser version that was popular on all PDP-11s
2283:ОСРВМ is the model of ОСРВ-СМ for the SM-1425. See:
1228:
space of 64 KB, a sophisticated semi-automatic
4167:
4128:
3909:
3869:
3843:
3810:
3786:
3758:
3718:
3675:
3642:
3615:
3588:
3542:
3483:
3462:
3384:
3374:
3363:
3149:
3045:
2992:
2936:
2881:
2769:
2629:
2604:
2549:
2497:
2468:
2452:
2408:
1371:"AA-J302B-TC_Introduction_to_FEP_and_FRP_Aug82.pdf"
1097:
Clones in the USSR and other Eastern Bloc countries
919:
Legal ownership, development model and availability
364:. Later development and release of IAS was led by
181:
163:
153:
143:
133:
115:
100:
92:
76:
64:
1730:Digital Equipment Corporation (15 December 1973).
1552:
1550:
1388:
1386:
1655:"TOPS-10/TOPS-20 RSX-20F System Reference Manual"
1105:and DEC minicomputers, in cooperation with other
2251:. In John Impagliazzo; Eduard Proydakov (eds.).
2186:. In John Impagliazzo; Eduard Proydakov (eds.).
1559:"Foreword to Inside Windows NT, by Helen Custer"
2239:
2237:
1797:Digital Equipment Corporation (February 1977).
1753:Digital Equipment Corporation (November 1974).
262:
1901:Digital Equipment Corporation (29 June 1994).
1853:"IAS Version 3.4 Software Product Description"
3340:
2386:
1699:Digital Equipment Corporation (August 1997).
1619:. Digital Equipment Corporation. 10 June 1988
1428:"RSX-15 Real Time Executive reference manual"
1127:Система Малых Электронно-Вычислительных Машин
962:when it acquired Digital in 1998 and then to
8:
2253:Perspectives on Soviet and Russian Computing
2188:Perspectives on Soviet and Russian Computing
2127:"Hungary: Computers behind the Iron Curtain"
2044:"PDP-11 System Software Component Catalogue"
1846:
1844:
1823:"PDP-11 System Software Component Catalogue"
1799:"RSX-11D System Generation Reference Manual"
1674:Digital Equipment Corporation (March 1973).
1649:
1647:
1530:
1528:
1526:
40:
2179:John Impagliazzo; Eduard Proydakov (2011).
1772:Digital Equipment Corporation (June 1974).
1584:"Windows NT and VMS: The Rest of the Story"
4238:
3549:
3381:
3371:
3347:
3333:
3325:
2465:
2443:
2393:
2379:
2371:
1851:Digital Equipment Corporation (May 1990).
39:
1975:"Compaq to buy Digital for $ 9.6 billion"
2290:(in Russian). 2002-07-19. Archived from
2120:
2118:
379:
1998:"HP to acquire Compag for $ 25 billion"
1755:"RSX 11M Task Builder Reference Manual"
1676:"RSX 11A Programmer's Reference Manual"
1333:A Real Time Approach to Process Control
1288:
995:– small paper tape real time executives
2244:N. L. Prokhorov; G. A. Egorov (2011).
2049:. Digital Equipment Corp. October 1979
1828:. Digital Equipment Corp. October 1979
1543:. Digital Equipment Corporation. 1975.
1179:Операционная Система Реального Времени
2246:"SM EVM Control Computer Development"
2151:Boris Nikolaevich Malinovsky (2010).
1433:. Digital Equipment Corporation. 1971
1357:"COMPAQ Software Product Description"
7:
3309:
3002:Digital Storage Systems Interconnect
2210:History of Computing and Education 2
1973:Michael Kanellos (26 January 1998).
847:Last release from Digital Equipment
27:Family of computer operating systems
3076:Dynamically Redefined Character Set
2019:Arik Hesseldahl (2 November 2015).
1049:separate instruction and data space
3022:Synchronous Backplane Interconnect
1996:Michael Kanellos (10 March 2002).
1660:. November 1980. p. 1-6.
1478:"Reference letter for Dan Brevick"
1173:. The name ОСРВ is an acronym for
25:
1774:"RSX 11M Working Design Document"
1311:"User's Handbook Vol.1 Processor"
4248:
4247:
4237:
3308:
3299:
3298:
3289:
3288:
2074:alt.folklore.computers newsgroup
1923:Mentec Inc. (13 December 2006).
1751:General availability date. See:
1716:, copy hosted on the website of
1476:Lacroute, Bernard (3 May 1982).
1425:RSX-15 release date taken from:
1148:with DEC offerings at the time.
52:RSX-11M-Plus 4.6 running on the
46:
3834:Transaction Processing Facility
3216:Maintenance Operations Protocol
2330:history of precursors to RSX-11
2068:Eric Postpischil (1990-01-22).
1408:from the original on 2021-12-11
4296:Discontinued operating systems
2208:. In Impagliazzo, John (ed.).
368:, in Digital's UK facilities.
358:Interactive Application System
1:
3106:Mass Storage Control Protocol
2402:Digital Equipment Corporation
211:Digital Equipment Corporation
71:Digital Equipment Corporation
3196:Digital Federal Credit Union
2418:(founder and CEO, 1957–1992)
2350:process control computer by
2218:10.1007/978-0-387-34741-7_11
2154:Pioneers of Soviet Computing
2093:Wesley Melling (June 1983).
1701:"DIGITAL Computing Timeline"
1297:"Real Time System Executive"
198:is a discontinued family of
4281:Real-time operating systems
3412:Multi-Environment Real-Time
3356:Real-time operating systems
3240:Sequence and Batch Language
3201:Dynamic debugging technique
2261:10.1007/978-3-642-22816-2_9
1732:"RSX 11C Paper Tape Labels"
637:Final major release of IAS
203:real-time operating systems
121:; 52 years ago
4314:
3231:Record Management Services
3017:Standard Disk Interconnect
1398:"Dave Cutler Oral History"
1057:Hardware-specific variants
972:Hewlett Packard Enterprise
529:RSX-11S 1.0 never existed
226:Real-Time System Executive
29:
4210:
3552:
3517:Operating System Embedded
3284:
3265:The Ultimate Entrepreneur
2441:
2070:"Multiprocessing PDP-11s"
1178:
1161:
1126:
1118:
506:Final version of RSX-11D
465:Final release of RSX-11C
249:operating system for the
45:
3802:Windows Embedded Compact
2928:DIGITAL Command Language
2286:
2190:. Springer. p. XIV.
1951:Mentec Inc. (May 1998).
1712:Originally published on
1140:mainframes based on the
1021:Digital Command Language
733:Final Micro/RSX version
3254:Systems Research Center
3249:System Reference Manual
2340:Dan's RSX-11 prehistory
1196:A clone of the RSX-11M
1047:the program to use the
341:Under the direction of
4141:Robot Operating System
3221:On-line Debugging Tool
2201:Raffai, Maria (2006).
295:
260:acronym, Brevik says:
176:Command-line interface
4276:DEC operating systems
1557:David Cutler (1993).
209:computers created by
4233:Open-source software
3644:Java virtual machine
3211:Local Area Transport
2969:National Replacement
2359:posted some further
2328:Dan Brevik posted a
1876:Mentec Inc. (1995).
1582:(30 November 1998).
925:proprietary software
111:source code included
32:RSX (disambiguation)
3071:Digital Linear Tape
2430:(VP of engineering)
1925:"Calyx buys Mentec"
1146:binary-incompatible
912:Released by Mentec
890:Released by Mentec
42:
3294:Computers template
1510:"RSX FAQ, General"
1490:on 18 January 2005
1091:personal computers
823:Final IAS Release
621:bef. October 1979
256:Commenting on the
4263:
4262:
3991:
3990:
3845:Texas Instruments
3611:
3610:
3538:
3537:
3322:
3321:
2625:
2624:
2270:978-3-642-22815-5
2103:. pp. 96–106
1342:978-1-1199-9387-2
1187:
1135:
1073:system generation
937:system generation
916:
915:
906:RSX-11M Plus 4.6
863:RSX-11M Plus 4.5
842:RSX-11M Plus 4.4
798:RSX-11M Plus 4.3
775:RSX-11M Plus 4.2
752:RSX-11M Plus 4.1
727:RSX-11M Plus 4.0
703:RSX-11M Plus 3.0
680:RSX-11M Plus 2.1
657:RSX-11M Plus 2.0
612:RSX-11M Plus 1.0
193:
192:
16:(Redirected from
4303:
4251:
4250:
4241:
4240:
3929:ERIKA Enterprise
3617:Capability-based
3550:
3382:
3372:
3349:
3342:
3335:
3326:
3312:
3311:
3302:
3301:
3292:
3291:
3086:Flip-Chip module
2979:Special Graphics
2466:
2447:
2436:(CEO, 1992–1998)
2395:
2388:
2381:
2372:
2316:
2315:word as 'RSX11M'
2309:
2303:
2302:
2300:
2299:
2281:
2275:
2274:
2250:
2241:
2232:
2231:
2227:9780-387-34637-3
2207:
2198:
2192:
2191:
2185:
2176:
2170:
2169:
2167:
2165:
2159:
2148:
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2137:
2131:
2122:
2113:
2112:
2110:
2108:
2090:
2084:
2083:
2081:
2080:
2065:
2059:
2058:
2056:
2054:
2048:
2039:
2033:
2032:
2030:
2028:
2016:
2010:
2009:
2007:
2005:
1993:
1987:
1986:
1984:
1982:
1970:
1964:
1963:
1961:
1959:
1948:
1942:
1941:
1939:
1937:
1920:
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1665:
1664:
1659:
1651:
1642:
1635:
1629:
1628:
1626:
1624:
1618:
1611:processor. See:
1601:
1595:
1594:
1592:
1590:
1580:Mark Russinovich
1576:
1570:
1569:
1567:
1565:
1554:
1545:
1544:
1542:
1532:
1521:
1520:
1518:
1516:
1506:
1500:
1499:
1497:
1495:
1489:
1483:. Archived from
1482:
1473:
1467:
1466:
1464:
1463:
1449:
1443:
1442:
1440:
1438:
1432:
1423:
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1390:
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1353:
1347:
1346:
1328:
1322:
1321:
1315:
1307:
1301:
1300:
1293:
1236:program (called
1198:operating system
1182:
1180:
1163:
1130:
1128:
1120:
1083:DEC Professional
380:
354:Garth Wolfendale
334:and Microsoft's
320:memory footprint
241:Name and origins
224:As the original
129:
127:
122:
50:
43:
37:Operating system
21:
4313:
4312:
4306:
4305:
4304:
4302:
4301:
4300:
4266:
4265:
4264:
4259:
4236:
4206:
4163:
4124:
3987:
3905:
3865:
3839:
3806:
3782:
3754:
3714:
3671:
3638:
3607:
3584:
3534:
3479:
3458:
3440:Real-Time Linux
3366:
3359:
3353:
3323:
3318:
3280:
3145:
3041:
2988:
2948:(Multinational)
2932:
2884:
2877:
2772:
2765:
2632:
2621:
2600:
2545:
2493:
2459:
2455:
2454:Instruction set
2448:
2439:
2422:Harlan Anderson
2404:
2399:
2361:notes on RSX-11
2344:Wayback Machine
2325:
2320:
2319:
2310:
2306:
2297:
2295:
2288:
2284:
2282:
2278:
2271:
2248:
2243:
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2235:
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2199:
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2183:
2178:
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2046:
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2018:
2017:
2013:
2003:
2001:
1995:
1994:
1990:
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1978:
1972:
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1967:
1957:
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1672:
1668:
1657:
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1622:
1620:
1616:
1614:"Internal Memo"
1612:
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1586:
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1555:
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1329:
1325:
1313:
1309:
1308:
1304:
1295:
1294:
1290:
1285:
1258:
1226:virtual address
1210:
1099:
1059:
985:
980:
964:Hewlett-Packard
921:
882:
838:
794:
771:
748:
723:
713:September 1987
699:
676:
608:
586:
564:
521:
511:September 1975
374:
300:
298:RSX-11D and IAS
243:
238:
230:process control
166:
125:
123:
120:
116:Initial release
60:
38:
35:
28:
23:
22:
15:
12:
11:
5:
4311:
4310:
4307:
4299:
4298:
4293:
4288:
4283:
4278:
4268:
4267:
4261:
4260:
4258:
4257:
4228:
4220:
4218:= discontinued
4211:
4208:
4207:
4205:
4204:
4199:
4194:
4189:
4184:
4182:David Cheriton
4179:
4173:
4171:
4165:
4164:
4162:
4156:
4150:
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4138:
4136:
4126:
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4019:
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4001:
3992:
3989:
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3949:
3941:
3935:
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3926:
3920:
3913:
3911:
3907:
3906:
3904:
3903:
3896:
3889:
3881:
3879:
3867:
3866:
3864:
3863:
3860:TI-RTOS Kernel
3857:
3849:
3847:
3841:
3840:
3838:
3837:
3831:
3824:
3816:
3814:
3808:
3807:
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3732:
3725:
3723:
3716:
3715:
3713:
3712:
3711:
3710:
3703:
3696:
3693:Concurrent DOS
3681:
3679:
3673:
3672:
3670:
3669:
3648:
3646:
3640:
3639:
3637:
3636:
3630:
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3609:
3608:
3606:
3605:
3599:
3592:
3590:
3586:
3585:
3583:
3582:
3581:
3580:
3575:
3574:(organization)
3572:T-Engine Forum
3569:
3567:Micro T-Kernel
3559:
3553:
3547:
3540:
3539:
3536:
3535:
3533:
3532:
3526:
3520:
3514:
3508:
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3408:
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3398:
3390:
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3379:
3369:
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3360:
3354:
3352:
3351:
3344:
3337:
3329:
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3316:
3306:
3296:
3285:
3282:
3281:
3279:
3278:
3273:
3268:
3261:
3256:
3251:
3246:
3241:
3238:
3233:
3228:
3223:
3218:
3213:
3208:
3203:
3198:
3193:
3192:
3191:
3181:
3176:
3169:
3164:
3159:
3153:
3151:
3150:Related topics
3147:
3146:
3144:
3143:
3138:
3133:
3128:
3123:
3118:
3113:
3108:
3103:
3098:
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3088:
3083:
3078:
3073:
3068:
3063:
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3043:
3042:
3040:
3039:
3034:
3029:
3024:
3019:
3014:
3009:
3004:
2998:
2996:
2990:
2989:
2987:
2986:
2981:
2976:
2971:
2966:
2961:
2958:Code page 1288
2955:
2952:Code page 1287
2949:
2946:Code page 1100
2942:
2940:
2938:Character sets
2934:
2933:
2931:
2930:
2925:
2920:
2915:
2910:
2905:
2900:
2895:
2889:
2887:
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2602:
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2555:
2553:
2547:
2546:
2544:
2543:
2538:
2537:
2536:
2526:
2525:
2524:
2514:
2512:MicroVAX 78032
2509:
2503:
2501:
2495:
2494:
2492:
2491:
2486:
2481:
2478:
2474:
2472:
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2405:
2400:
2398:
2397:
2390:
2383:
2375:
2369:
2368:
2354:
2337:
2324:
2323:External links
2321:
2318:
2317:
2304:
2276:
2269:
2233:
2226:
2193:
2171:
2143:
2114:
2085:
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2011:
1988:
1965:
1943:
1915:
1893:
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1814:
1789:
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1501:
1468:
1444:
1418:
1396:(2016-02-25).
1382:
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1302:
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1209:
1206:
1194:
1193:
1103:IBM mainframes
1098:
1095:
1094:
1093:
1076:
1066:
1058:
1055:
1054:
1053:
1043:
1042:
1036:
1030:
1024:
1012:
1006:
996:
984:
981:
979:
976:
949:Mentec Limited
920:
917:
914:
913:
910:
909:Micro/RSX 4.6
907:
904:
902:
900:
898:
896:
895:February 1999
892:
891:
888:
886:
884:
879:
877:
875:
873:
872:November 1998
869:
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861:
859:
857:
855:
853:
849:
848:
845:
843:
840:
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828:February 1993
825:
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730:Micro/RSX 4.0
728:
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710:
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706:Micro/RSX 3.0
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678:
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642:November 1981
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576:December 1977
573:
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534:December 1975
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470:November 1974
467:
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449:December 1973
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167:user interface
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117:
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14:
13:
10:
9:
6:
4:
3:
2:
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4291:1972 software
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3686:Multiuser DOS
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3557:ITRON project
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3136:System Module
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3018:
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3005:
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2999:
2997:
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2994:Bus standards
2991:
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2475:
2473:
2471:
2467:
2464:
2462:
2457:
2456:architectures
2451:
2446:
2435:
2434:Robert Palmer
2432:
2429:
2426:
2423:
2420:
2417:
2414:
2413:
2411:
2407:
2403:
2396:
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2366:
2365:alt.sys.pdp11
2362:
2358:
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2341:
2338:
2335:
2334:alt.sys.pdp11
2331:
2327:
2326:
2322:
2314:
2308:
2305:
2294:on 2015-05-02
2293:
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2240:
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2194:
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2182:
2175:
2172:
2156:
2155:
2147:
2144:
2128:
2125:Gábor Képes.
2121:
2119:
2115:
2102:
2101:
2096:
2089:
2086:
2075:
2071:
2064:
2061:
2045:
2038:
2035:
2022:
2015:
2012:
1999:
1992:
1989:
1976:
1969:
1966:
1954:
1947:
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1932:
1931:
1926:
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1916:
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1527:
1523:
1511:
1505:
1502:
1486:
1479:
1472:
1469:
1458:
1454:
1453:"General FAQ"
1448:
1445:
1429:
1422:
1419:
1407:
1403:
1399:
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1389:
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1379:
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1199:
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1096:
1092:
1088:
1084:
1080:
1077:
1074:
1070:
1067:
1064:
1061:
1060:
1056:
1052:command file.
1050:
1045:
1044:
1040:
1037:
1034:
1031:
1028:
1025:
1022:
1018:
1017:
1013:
1010:
1007:
1004:
1000:
997:
994:
990:
987:
986:
983:Main versions
982:
977:
975:
973:
969:
965:
961:
956:
954:
950:
946:
941:
938:
934:
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926:
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908:
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901:
899:
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834:
832:
830:
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822:
820:
818:
816:
813:
811:
809:
806:
805:
802:
800:
797:
792:
790:
788:
786:
784:January 1990
783:
782:
779:
777:
774:
769:
767:
765:
763:
761:January 1989
760:
759:
756:
754:
751:
746:
744:
742:
740:
737:
736:
732:
729:
726:
721:
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712:
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697:
695:
693:
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679:
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623:
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433:
431:
428:
427:
424:
422:
420:
418:
416:
414:
411:
408:
407:
403:
400:
398:RSX-11M Plus
397:
394:
391:
388:
385:
382:
381:
378:
372:Release dates
371:
369:
367:
363:
359:
355:
350:
348:
344:
339:
337:
333:
329:
325:
321:
316:
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306:
297:
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288:
284:
280:
276:
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227:
222:
220:
216:
212:
208:
204:
201:
197:
189:
186:
184:
180:
177:
173:
170:
168:
162:
159:
156:
154:Influenced by
152:
149:
146:
142:
139:
136:
132:
118:
114:
110:
106:
105:Closed source
103:
99:
95:
93:Working state
91:
88:
84:
81:
79:
75:
72:
69:
67:
63:
58:
55:
49:
44:
33:
19:
4252:
4242:
4230:
4222:
4217:
4214:
4202:Ken Sakamura
4197:Adam Dunkels
4100:
4094:
4087:
4080:
4062:
4055:
4003:
3995:
3943:
3910:Low resource
3898:
3891:
3885:
3884:
3852:
3826:
3819:
3773:
3772:^° kernel →
3767:
3740:
3705:
3698:
3691:
3684:
3663:
3657:
3651:
3624:
3505:Nucleus RTOS
3490:
3471:
3451:
3426:
3420:
3416:
3410:
3393:
3263:
3171:
3131:Star coupler
3027:TURBOchannel
2873:Digital UNIX
2830:
2424:(co-founder)
2307:
2296:. Retrieved
2292:the original
2279:
2252:
2209:
2196:
2187:
2174:
2162:. Retrieved
2160:. p. 25
2153:
2146:
2134:. Retrieved
2105:. Retrieved
2098:
2088:
2077:. Retrieved
2073:
2063:
2051:. Retrieved
2037:
2025:. Retrieved
2023:. recode.net
2014:
2002:. Retrieved
1991:
1979:. Retrieved
1968:
1956:. Retrieved
1946:
1934:. Retrieved
1930:The Register
1928:
1918:
1906:. Retrieved
1896:
1884:. Retrieved
1871:
1859:. Retrieved
1830:. Retrieved
1817:
1805:. Retrieved
1792:
1780:. Retrieved
1761:. Retrieved
1747:
1735:. Retrieved
1724:
1704:. Retrieved
1694:
1682:. Retrieved
1669:
1661:
1633:
1621:. Retrieved
1599:
1587:. Retrieved
1574:
1562:. Retrieved
1536:
1513:. Retrieved
1504:
1492:. Retrieved
1485:the original
1471:
1460:. Retrieved
1457:www.miim.com
1456:
1447:
1435:. Retrieved
1421:
1410:. Retrieved
1401:
1394:Cutler, Dave
1377:
1365:
1351:
1332:
1326:
1317:
1305:
1291:
1250:
1242:
1237:
1233:
1223:
1218:
1211:
1195:
1171:Eastern bloc
1166:
1156:
1152:
1100:
1078:
1068:
1062:
1039:RSX-11M-Plus
1038:
1032:
1026:
1014:
1008:
998:
992:
988:
957:
942:
922:
883:RSX-11S 4.8
839:RSX-11S 4.7
795:RSX-11S 4.6
772:RSX-11S 4.5
749:RSX-11S 4.4
724:RSX-11S 4.3
700:RSX-11S 4.2
677:RSX-11S 4.1
653:RSX-11S 4.0
652:
651:RSX-11M 4.0
609:RSX-11S 3.2
587:RSX-11S 3.1
565:RSX-11S 3.0
522:RSX-11S 2.0
495:RSX-11D 6.2
479:RSX-11M 1.0
434:RSX 11D 1.0
412:RSX-11A 1.0
375:
362:time sharing
351:
340:
317:
313:Henry Krejci
301:
292:
289:
285:
281:
277:
274:
270:
266:
263:
257:
255:
244:
225:
223:
195:
194:
101:Source model
96:Discontinued
4225:Microkernel
4187:Dave Cutler
4177:Gordon Bell
4082:Sintran III
3952:OpenComRTOS
3653:Chorus/Jazz
2883:Programming
2596:Alpha 21464
2591:Alpha 21364
2586:Alpha 21264
2576:Alpha 21164
2559:Alpha 21064
2428:Gordon Bell
2164:12 December
2136:12 December
2132:. p. 8
2053:11 December
2027:11 December
2004:11 December
1981:11 December
1958:11 December
1936:11 December
1908:11 December
1886:15 November
1832:11 December
1807:15 November
1782:15 November
1763:15 November
1737:10 December
1718:Gordon Bell
1706:10 December
1684:15 November
1639:Gordon Bell
1402:youtube.com
1248:" command.
1234:taskbuilder
1200:ran on the
945:Mentec Inc.
933:open source
881:RSX-11M 4.8
852:March 1995
837:RSX-11M 4.7
793:RSX-11M 4.6
770:RSX-11M 4.5
747:RSX-11M 4.4
722:RSX-11M 4.3
698:RSX-11M 4.2
675:RSX-11M 4.1
666:April 1983
607:RSX-11M 3.2
585:RSX-11M 3.1
563:RSX-11M 3.0
554:April 1977
520:RSX-11M 2.0
452:RSX-11C 7A
409:March 1973
395:RSX-11M, S
386:RSX-11A, C
366:Andy Wilson
324:Dave Cutler
188:Proprietary
4270:Categories
4244:Comparison
4169:Developers
4130:Frameworks
4072:° Standard
4050:Phantom OS
4028:µ-velOSity
3917:ChibiOS/RT
3189:HP-Interex
2612:MicroPRISM
2461:processors
2409:Key people
2298:2015-08-25
2107:5 February
2079:2015-08-25
2000:. cnet.com
1977:. cnet.com
1861:6 December
1623:4 December
1589:4 December
1564:4 December
1515:4 December
1494:4 December
1462:2019-12-10
1437:4 December
1412:2021-02-26
1283:References
1142:System/360
923:RSX-11 is
689:July 1985
490:June 1975
401:Micro/RSX
343:Ron McLean
336:Windows NT
219:Windows NT
200:multi-user
144:Influenced
78:Written in
4192:Dan Dodge
4120:UniProton
4070:RT-Thread
4044:Microware
3964:RT-Thread
3788:Microsoft
3578:T-License
3499:Integrity
3386:Unix-like
3365:Operating
3162:AltaVista
3066:DECwriter
3037:VAXBI bus
2984:Technical
2960:(Turkish)
2923:VAX MACRO
2885:languages
2771:Operating
2653:VT50/VT52
2633:terminals
2617:StrongARM
2416:Ken Olsen
2357:Al Kossow
2181:"Preface"
1318:BitSavers
1208:Operation
1069:Micro/RSX
929:Copyright
807:May 1990
738:May 1988
598:May 1979
429:May 1973
309:PDP-11/45
305:PDP-11/40
134:Platforms
66:Developer
4254:Category
4076:ScreenOS
4016:FreeRTOS
3958:PX5 RTOS
3665:ChorusOS
3562:T-Kernel
3523:PX5 RTOS
3492:ChorusOS
3401:Junos OS
3304:Category
3173:CPU Wars
3091:Gold key
3048:hardware
2974:RADIX 50
2913:MACRO-11
2908:MACRO-10
2631:Computer
2313:RADIX-50
1406:Archived
1256:See also
1202:Romanian
1085:line of
978:Versions
814:IAS 3.4
628:IAS 3.0
541:IAS 1.0
404:Comment
389:RSX-11D
174:and MCR
83:MACRO-11
57:emulator
4215:Italics
4159:Xenomai
4153:TI-RTOS
4115:VxWorks
4102:Harmony
4005:DioneOS
3976:ThreadX
3945:Nano-RK
3934:FunkOS°
3923:Contiki
3828:4690 OS
3821:4680 OS
3796:ThreadX
3775:Symbian
3707:REAL/32
3589:Partial
3546:support
3519:^ (OSE)
3484:Partial
3446:RTLinux
3421:Unix-RT
3378:support
3367:systems
3314:Commons
3226:PALcode
3111:PALcode
3081:Firefly
3061:DECtape
3056:DECtalk
3007:Massbus
2954:(Greek)
2893:BASIC-8
2853:VAX/VMS
2848:TOPS-20
2796:TOPS-10
2773:systems
2580:21164PC
2342:at the
2287:СМ 1425
1230:overlay
1186:
1175:Russian
1162:ОСРВ-СМ
1158:Russian
1134:
1123:Russian
1115:Russian
1107:COMECON
1089:-based
1063:RSX-20F
1033:RSX-11S
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