yann64andClaude Opus 5.5
b274874139
1,289 discussions, 9,527 archived comments; pages no longer carry the comments themselves. Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01YDRjtmAiNpo5mK5N3d7QwZ
188 lines
6.1 KiB
Markdown
188 lines
6.1 KiB
Markdown
---
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title: Robotron KC 87
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categories:
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- Computers
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types:
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- Home Computer
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origins:
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- Germany
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years:
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- '1986'
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cpus:
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- U880 D
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params:
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name: KC 87
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image: /media/museum/photos/robotron_kc87_system_1.jpg
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company: /companies/robotron
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company_name: Robotron
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specs:
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- label: NAME
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value: KC 87
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- label: MANUFACTURER
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value: Robotron
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- label: TYPE
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value: Home Computer
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- label: ORIGIN
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value: Germany
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- label: YEAR
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value: '1986'
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- label: END OF PRODUCTION
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value: around 1990
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- label: BUILT IN LANGUAGE
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value: KC 87 OS, BASIC
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- label: KEYBOARD
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value: |-
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Built into Unit, QWERTZ-Layout, 65 keys\
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VERY hard to write with
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- label: CPU
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value: U880 D (Z80 clone)
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- label: SPEED
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value: 1,75 Mhz
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- label: RAM
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value: '17 KB (useable: 16), expandable to 64 KB max.'
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- label: VRAM
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value: 2 KB
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- label: ROM
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value: 16 KB (4 KB OS, 10 KB BASIC, 2 KB character map)
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- label: TEXT MODES
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value: 40x24 characters (switchable to 40x20)
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- label: GRAPHIC MODES
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value: Graphics only possible with 128 pre-defined graphic and 96 text symbols in text mode (8x8 pixels size)
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- label: COLORS
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value: B/W, color module available as an option (then 8 foreground and 8 background colors)
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- label: SOUND
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value: Integrated beeper. Mono sound module with 8 volumes and 6 octaves available as an option
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- label: SIZE / WEIGHT
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value: 400x300x85 mm / 4,1 Kg
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- label: I/O PORTS
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value: |-
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B/W TV output through HF-modulator, DIN connector for cassette drive, DIN connector for special tasks (I/O), 2 connectors for 2 Joysticks, 4 x module slots (K1520-Bus)\
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After RGB-Upgrade: 1 connector for 2 Joysticks, 1 connector for RGB color output
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- label: OS
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value: KC 87 OS
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- label: POWER SUPPLY
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value: ca. 25 W
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- label: PERIPHERALS
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value: Colour addon, Sound module, Basic on ROM, 16 KB RAM modules, 10 KB module with room for self-programmed ROM’s, ADC module, DAC module
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- label: PRICE
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value: |-
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KC 87.30: 3000 Marks (1986), 960 Marks (1989)\
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KC 87.31: 1300 Marks (1989)
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tabs:
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- photos
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- hardware
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- software
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- links
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- docs
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forum_thread: 559
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photos:
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- title: KC 87
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subtitle: ''
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text: ''
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image: /media/museum/photos/robotron_kc87-front1.jpg
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- title: KC 87
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subtitle: ''
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text: Thanks to [WWW.HEIMCOMPUTER.DE](http://www.heimcomputer.de) for this picture
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image: /media/museum/photos/robotron_kc87_3.jpg
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- title: BACK SIDE
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subtitle: ''
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text: |-
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On the left, the power plug, the fuse and the On/Off switch.
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The right inscription mentions that this system is a KC 87.11 version, manufactured in the Robotron factory in Dresden
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image: /media/museum/photos/robotron_kc87_back_1.jpg
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- title: RIGHT SIDE
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subtitle: ''
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text: |-
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From left to right:
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\- Optional numeric keypad connector,\
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\- Tape recorder DIN plug,\
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\- Colour RGB monitor DIN plug,\
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\- 2 x Joysticks DIN plug,\
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\- RF TV aerial output.
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image: /media/museum/photos/robotron_kc87_right_1.jpg
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- title: 'KEYBOARD CLOSE-UP #1'
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subtitle: ''
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text: Original, well designed but very poor quality keyboard.
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image: /media/museum/photos/robotron_kc87_keybclose_1.jpg
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- title: 'KEYBOARD CLOSE-UP #2'
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subtitle: ''
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text: ''
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image: /media/museum/photos/robotron_kc87_keybclose_2.jpg
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- title: 'INSIDE #1'
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subtitle: ''
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text: |-
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Manufacturing quality is equal to the western productions of the time. All chips and components (except 4) came from Eastern-Europe. The numerous brown sqares are old-fashioned capacitors.
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**(1)** U-880D East-European clone of the Z80 CPU\
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**(2)** Video RAM chips\
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**(3)** O.S. and BASIC language ROM chips\
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**(4)** I/O chips (clones of the 8255 chip)\
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**(5)** TV aerial UHF modulator\
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**(6)** switching power supply.
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image: /media/museum/photos/robotron_kc87_inside_1.jpg
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- title: 'INSIDE #2'
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subtitle: ''
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text: Notice the four module slots (K1520-Bus) at the upper left.
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image: /media/museum/photos/robotron_kc87-open.jpg
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- title: C.P.U. CLOSE-UP
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subtitle: ''
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text: |-
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To note:\
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\- The UB 880D microprocessor,\
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\- 2 x 8 KB ROM chips: one SGS EPROM from Western-Europe (with green mask) and one ROM from Eastern-Europe,\
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\- Siemens video RAM chips.
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image: /media/museum/photos/robotron_kc87_insidecl_1.jpg
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- title: EXPANSION MODULES HOUSING
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subtitle: ''
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text: ''
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image: /media/museum/photos/robotron_kc87_inside_2.jpg
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- title: DOCS
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subtitle: ''
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text: Thanks to [WWW.HEIMCOMPUTER.DE](http://www.heimcomputer.de) for this picture
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image: /media/museum/photos/robotron_kc87_docs.jpg
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hardware:
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- title: KEYPAD
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subtitle: ''
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text: Thanks to [WWW.HEIMCOMPUTER.DE](http://www.heimcomputer.de) for this picture
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image: /media/museum/hardware/robotron_keypad.jpg
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screenshots:
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- title: BOOT SCREEN
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subtitle: ''
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text: ''
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image: /media/museum/software/robotron_kc87_boot_ss.gif
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links:
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- title: KC Club
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url: http://www.kc-club.de/
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text: Nice german site full of info!
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- title: UPKA
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url: http://www.upka.de/
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text: lots of documentations in PDF (German)
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docs:
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- title: KC87 & Z9001 MANUALS AND DIAGRAMS, IN GERMAN
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url: null
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cover: /media/museum/docs/couvs/vide.gif
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text: |-
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**KC87 & Z9001 MANUALS AND DIAGRAMS, IN GERMAN**\
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written by Robotron
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compiled/archived by Compiled/archived by Thomas Stein\
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type of document : PDF\
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source : Thomas Stein
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related:
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- /museum/r-f-t-kc-85-3
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- /museum/r-f-t-kc-85-4
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- /museum/robotron-kc-85-1-z-9001
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oc_id: 568
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source:
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url: https://web.archive.org/web/20230601145719/http://www.old-computers.com/museum/computer.asp?c=568
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date: '2023-06-01'
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---
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The KC87 is the successor of the KC85/1. The main difference between the two systems is the built-in BASIC interpreter. Thus it was software and hardware compatible to its predecessor.
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This model existed in two different versions: KC87.30 and KC87.31. Latter had the RGB option already included.
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Text and info kindly provided by Stefan Goehler.
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