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.
This model existed in two different versions: KC87.30 and KC87.31. Latter had the RGB option already included.
Text and info kindly provided by Stefan Goehler.
END OF PRODUCTION
BUILT IN LANGUAGE
KC 87 OS, BASIC
Built into Unit, QWERTZ-Layout, 65 keys VERY hard to write with
U880 D (Z80 clone)
17 KB (useable: 16), expandable to 64 KB max.
16 KB (4 KB OS, 10 KB BASIC, 2 KB character map)
40x24 characters (switchable to 40x20)
Graphics only possible with 128 pre-defined graphic and 96 text symbols in text mode (8x8 pixels size)
B/W, color module available as an option (then 8 foreground and 8 background colors)
Integrated beeper. Mono sound module with 8 volumes and 6 octaves available as an option
SIZE / WEIGHT
400x300x85 mm / 4,1 Kg
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) After RGB-Upgrade: 1 connector for 2 Joysticks, 1 connector for RGB color output
KC 87 OS
ca. 25 W
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
KC 87.30: 3000 Marks (1986), 960 Marks (1989) KC 87.31: 1300 Marks (1989)