====== VEB Mikroelektronik KC 85/4 (1989) ======
===== Features =====
* CPU: U880 D (Z80 clone) 1,77 MHz
* Co-Processor: none. CPU even managed video processing.
* RAM: 64 KB, expandable to max. 4 MB
* ROM: 20 KB
* Text Modes: 40 x 32 characters
* Graphic Modes: 320 x 256
* Colors: 16 colors/foreground, 8 colors/background
* Sound: 2 tone generators, 2x5 Octaves; Stereo when connected to a stereo hi-fi system (constant volume), mono over TV if connected through FBAS/RGB (32 volume levels)
* I/O Ports: Color TV output through PAL HF-modulator, TV output via FBAS/RGB, DIN connector for cassette drive (including TTL motor switch voltage) or to connect to a stereo, 2 expansion slots, expansion interface for set-top expansion
* Keyboard: QWERTZ-Layout, Function keys (F1-F6), Cursor keys pretty small keys, not easy to type with; 64 keys; connected through mono DIN-jack
* Peripherals: V24 interface, memory cards (16/64 KB), EPROM-module, several user ports, 5 1/4" diskdrive set-top (included own U880 system with 64K RAM!!)
* Built In Media: none. external cassette player required (connected via DIN connector)
* OS: CAOS 4.2 (for cassette operation), MicroDOS (if working with Diskdrive expansion, CP/M compatible)
* Built In Language: CAOS 4.2 (Cassette Aided Operating System), integrated Basic interpreter
===== Known Issues =====
The emulation of this system is Preliminary.
===== History and Trivia =====
"KC" stands for "KleinComputer", which could be translated to "Small Computer".
The KC85/4 was the last one of the KC series. Although it doesn't look quite different, some internals changed. The whole design changed a bit, and software which used to access hardware directly, sometimes didn't work any longer, as some addresses changed.
Also, memory was expanded to 64 KB, and the whole memory could be used by software. The ROM increased to 20 KB. The CAOS system offered printer support for most of the available GDR printer models.
There are two expansion slots, which could be extended to four through an expansion set-top.
//(info from old-computers.com)//
===== Links =====
* KC Club -- http://www.kc-club.de/
* KC 85/4 at old-computers.com -- http://old-computers.com/museum/computer.asp?c=598
Generated on Sun Jul 19 10:17:28 2009