Robotron KC 87

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Kleincomputer robotron KC 87
VEB Robotron Margin.svg
DeveloperVEB Robotron-Meßelektronik "Otto Schön" Dresden
TypeHome computer
Release date1986; 37 years ago (1986)
Lifespan1990; 33 years ago (1990)
Introductory priceKC 87.30: 3000 marks (1986), 960 marks (1989)
KC 87.31: 1300 marks (1989)
MediaCassette tapes
Operating systemBASIC interpreter in ROM
CPUU880 (Zilog Z80 clone) @ 2.5 MHz
Memory17 KB (64 KB max.)
Display40x20 characters, 40x24 semigraphics

The Robotron KC 87,[1][2] fully known as the Kleincomputer robotron KC 87 (KC standing for Kleincomputer, lit. "small computer"), was an 8-bit home computer released in 1986 and produced in East Germany by the VEB Robotron-Meßelektronik "Otto Schön" Dresden, part of the Kombinat Robotron.[3]

The first model in the series, the Robotron Z 9001, was introduced in 1984 and renamed Robotron KC 85/1 in 1985. Despite similar names, the Robotron home computers were not directly related to the KC 85 series produced by the VEB Mikroelektronik "Wilhelm Pieck" Mühlhausen.[4][5]

The availability of the Robotron KC series for private customers was very limited. The computers were mostly used at educational institutions, organizations, and enterprises. Therefore, the extracurricular use of home computers was often allowed for students at institutions and organizations.[4]


The Robotron KC series used an U880 microprocessor, a clone of the Zilog Z80, which was clocked at 2.5 MHz. The keyboard was integrated into every machine. Software could be loaded from cassette tapes; a separate cassette deck was needed for doing so. All models featured module slots for up to four expansion modules, which allowed expansion of the hardware, such as by upgrading the RAM or allowing it to connect to a printer, but also included applications and programming languages. The KC 87 had the BASIC interpreter in ROM, (in earlier models, the user had to load it from tape or use a BASIC expansion module). In addition to the home computers, Robotron also offered cassette tapes with applications and games, modules, and other equipment.

See also[edit]

  • Robotron Z 1013 – A mostly compatible hobbyist kit, available even to private consumers via written order, waiting of one year and then self-pickup from factory outlet.
  • KC 85 – A series of mostly compatible computers from a different manufacturer.
  • KC compact – The only pre-assembled home computer made in the GDR aimed at private consumers; not compatible to any of the other KC systems.


  1. ^ "KC 87 Robotron". Retrieved 2022-11-24.
  2. ^ "Robotron KC 87". Retrieved 2022-11-24.
  3. ^ "The KC85 Computers". Retrieved 2022-11-24.
  4. ^ a b Weise, Klaus-Dieter (December 2005). "Erzeugnislinie Heimcomputer, Kleincomputer und Bildungscomputer des VEB Kombinat Robotron" [Product line homecomputers, microcomputers and educational computers of VEB Kombinat Robotron] (PDF) (in German). Dresden, Germany: UAG Historie Robotron der Arbeitsgruppe Rechentechnik, Förderverein für die Technischen Sammlungen Dresden [de]. pp. 8, 11f., 13f., 28f., 35, 46, 48f., 49, 50f., 51, 53, 55f. Archived (PDF) from the original on 2022-11-07. Retrieved 2022-11-07. (73 pages)
  5. ^ Peter Mühlbauer (2000-10-03). "Auferstanden aus Platinen" [Risen from boards] (in German). Telepolis. Retrieved 2009-11-30.

External links[edit]