The Robotron KC series used an
U880 microprocessor, a clone of the
Zilog Z80, clocked at 2.5 MHz. Every machine came with a built-in keyboard, power supply and
RF modulator. Software could be loaded from
cassette tapes, which required a separate
cassette deck. All models featured
K 1520 bus slots for up to four expansion modules. They allowed expanding the hardware, such as upgrading the
RAM, connecting a
printer or displaying
bitmapped graphics, but also included modules with
application software and
programming languages. The KC 87 had a
KC-BASIC [de] interpreter in
ROM. In earlier models, the user had to load BASIC from tape or use an expansion module. Sufficiently expanded models could even run
SCP [de], an East German
CP/M clone. Robotron also offered cassette tapes with applications and
games. File:Z9001 Prototyp.jpg|Robotron Z 9001 prototype File:Robotron Z9001.jpg|Robotron Z 9001 File:Robotron-KC85-1-5.jpg|Robotron KC 85/1 File:Robotron-KC87-3.jpg|Robotron KC 87, side view File:KC85-1 Arbeitsplatz 1.jpg|Workplace with Robotron KC 85/1: cassette deck
Geracord 6020 Portable, dot matrix printer
Robotron K 6313 and Russian
Junost-402B television set. File:Robotron-KC85-1-3a.jpg|Internals of the KC 85/1, keyboard folded up File:Robotron-KC87-4a.jpg|KC 87 with revised mainboard == Trivia ==