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R > REGNECENTRALEN > RC 700 Piccolo   

REGNECENTRALEN  Regnecentralen
RC 700 Piccolo

Regnecentralen was a governmental agency founded in 1955 in order to build and run DASK (the first Danish computer), and for doing research in the computer field.

The RC 702 Piccolo (RC 700 was the series) was thus used by most schools in Denmark. It was equiped with a Z80A microprocessor, could be shipped with one or two built-in 5" floppy disc drive and ran CP/M.

The system supported CP/M and UCSD PASCAL, but was usually shipped with RC COMAL-80, a programming language which was used extensively in Danish schools for many years. COMAL was quite popular as a teaching language, especially in Scotland.


Pictures & info from Henrik Schmidt

We need more info about this computer ! If you designed, used, or have more info about this system, please send us pictures or anything you might find useful.
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nice memories. Had even a 10MB winchester HD. And what about a daiswheel printer with a near 99dB noise level. But when the keyboard failed it was 2 months of tracking down the failing 10kB buffer memory :-(. With just a 10Mb osciloscoop Gave it away to some east-europeans. Never new if it was, as promised, for education or for all the gold used in these eary computer PCB''s.

Tuesday 20th April 2021

To enhance my comment on 9th September 2010: This computer was used for training purposes in The Netherlands to educate young adults, (which already had a degree), with a special half-year course, for acquiring a job in the IT business. It was in the year 1985. I remember the operating system installed was CP/M and we programmed in the COBOL language.

Monday 16th May 2016
Anonymous (Netherlands)

Back in 1981, my school, Sofiendalskolen in Aalborg, had a few RC700 systems, and I used them for learning to program in Pascal and COMAL. While most of these were RC702 systems, we also had an RC701 system, which I believe is quite rare. It had an 8" floppy disk drive and used a TV monitor for display.

I have made a website with more information about the RC700 computer from Regnecentralen. The site has a simulator for the RC700, which you can download, or you can try the web-based version of the simulator. There is also a number of disk images with software for the RC700 which can be used with the simulator.

I am interested in finding more software for the RC700. If you have any software on 5 1/4" floppy disks (original or not) made for (or compatible with) the RC700, please let me know. I have made a PC that can be used for reading these and create .IMD disk image files.

Friday 1st August 2014
Michael Ringgaard (Denmark)
RC700 simulator


NAME  RC 700 Piccolo
MANUFACTURER  Regnecentralen
TYPE  Professional Computer
ORIGIN  Denmark
YEAR  1980
KEYBOARD  RC-721 full-stroke limited keyboard. An extended version with numeric keypad was also available
SPEED  4 Mhz
RAM  48 KB (expandable to 64 KB)
GRAPHIC MODES  A graphic expansion board could be installed (More info?)
COLORS  Monochrome
SOUND  Beeper
I/O PORTS  Monitor output, Keyboard connector, Parallel connector, Terminal & Printer serial (V24) connectors, External disk drive connector, Fuse, Monitor power
BUILT IN MEDIA  5.25'' floppy disk drive
Optional 8'' floppy disk drive
PERIPHERALS  RC-602 or RC-603 dot matrix printer
PRICE  About $3500

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Ready prompt
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Commodore 64 prompt
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