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The MOMIK 8-B (MERA) minicomputer had been designed in Poland in 1973. In 1974 the MERA 300 (MERA ZSM), based on the previous model, was introduced. The same year, at the Poznań International Trade Fair and
Exhibition, twelve more models were displayed. MERA 300 was designed by dr. Waldemar Romaniuk
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It should be mentioned that the MERA 300 RTX was not necessary while the MOTIS assembler ran, as it was able to work without an operating system.
384:(licensed CDC 9425 cartridge disk drive), fixed plate and exchangeable cartridge 2.5 megabits (3.125 megabytes) each ,connected via DMA channel
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Piotr
Misiurewicz, Andrzej Rydzewski, Minikomputer Mera 300. Instrukcja dla użytkownika. Wydawnictwa Politechniki Warszawskiej,
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The computer's machine language consisted of 34 instructions, including arithmetical, logical and control instructions.
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Internal memory divided to 4k-word pages, with a maximum of approximately 8, 15, 24 or 32K words of memory
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is divided into 32-word pages. Instruction memory could be accessed using an
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370:(PK-1 and PK-2) for data storage with a capacity of 0,5 million characters.
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The MERA 306 was a more complex, extended version with features including:
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and a four-level interrupt system, with a total of 128 interrupts (4x32).
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16-bit control interface used to connect e.g. CAMAC crate controllers
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In addition to the above, it was possible to attach other devices:
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665:"FORUM OCHOTY :: Seminarium Minikomputery Zakładów Era"
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Universal and special-purpose systems: MERA 392, MERA 396
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Displaying keyboard input while recording data on a tape
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DTK 50 tape and card puncher with control unit JS-DTK 50
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and (CTK 50R) card reader with control unit (JS-CTK 50)
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CT 1001A tape reader with control unit (JS-CT 1001)
87:. Unsourced material may be challenged and removed.
460:CT 2000 tape reader with control unit (JS-CT 2000)
447:Data input devices for the MERA 300 series were:
311:Sets of MERA 300 (MERA 302, MERA 303) included:
468:DT 105 tape puncher with control unit JS-DT 105
274:systems: MERA 300, 301, 302, 303, 304, 305, 306
246:family. It was first introduced in 1974 at the
557:Programmable manually from the control console
342:Single-level interrupt system (32 interrupts),
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485:Printing data while reading from tape reader
435:Measuring devices and industrial automation.
302:: MOMIK 8b/100 (250 000 instructions/second)
50:Learn how and when to remove these messages
373:The MERA 305 was an extended version with
267:Family of the MERA 300 systems included:
216:Learn how and when to remove this message
147:Learn how and when to remove this message
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277:Interactive systems: MERA 342, MERA 344
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85:adding citations to reliable sources
488:Printing data while punching tapes
295:MERA 300 included the next units:
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31:This article has multiple issues.
706:Science and technology in Poland
475:Other input/output peripherals:
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72:needs additional citations for
39:or discuss these issues on the
575:Software-emulated instructions
534:industrial process controlling
178:format but may read better as
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502:Display onscreen information
307:MERA 300 series architecture
547:Real Time eXecutive program
250:Trade Fair and Exhibition.
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528:engineering computations
531:measurement controlling
482:Printing keyboard input
398:Power-outage protection
339:using page:word offset.
316:Central processing unit
187:converting this article
552:Basic system programs:
348:External peripherals:
318:with arithmetical unit
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609:Members of the family
579:Programming languages
464:Data output devices:
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499:ALFA 311/M monitor:
493:FACIT 384 typewriter
479:TELETYPE MODEL 390:
427:Specialized keyboard
81:improve this article
496:DZM 180 dot printer
345:Channel multiplexer
333:instruction pointer
291:System architecture
239:was a Polish-built
566:Standard utilities
366:The MERA 301 used
259:and Janusz Popko.
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189:, if appropriate.
443:Data Input/Output
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667:. Archived from
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263:About the family
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185:You can help by
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701:8-bit computers
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589:MOTIS assembler
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524:data processing
520:collecting data
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404:(RTC) interface
402:Real-time clock
360:control console
322:Internal memory
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281:Control systems
272:Data processing
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696:Minicomputers
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671:on 2015-12-22
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98: –
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92:Find sources:
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673:. Retrieved
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585:Machine code
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244:minicomputer
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191:Editing help
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79:Please help
74:verification
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33:Please help
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452:Tape reader
431:Tape memory
410:(MERA 9425)
199:August 2024
137:August 2009
690:Categories
675:2015-12-10
651:References
562:bootloader
354:typewriter
300:Processors
283:: MERA 362
107:newspapers
96:"MERA 300"
36:improve it
408:Hard disk
382:Hard disk
337:addressed
42:talk page
644:Warszawa
632:MERA 306
629:MERA 305
626:MERA 304
623:MERA 303
620:MERA 302
617:MERA 301
614:MERA 300
539:Software
423:keyboard
237:MERA 300
232:MERA 302
598:FORTRAN
419:Monitor
351:printer
254:History
121:scholar
572:editor
545:OS RTX
517:office
357:reader
329:memory
248:Poznań
174:is in
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593:BASIC
570:MOTIS
512:Usage
326:words
241:8-bit
180:prose
128:JSTOR
114:books
560:DDT
421:and
176:list
100:news
375:DMA
83:by
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Text is available under the Creative Commons Attribution-ShareAlike License. Additional terms may apply.
