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R > R.F.T. > KC 85/3   


R.F.T.
KC 85/3

The KC 85/3 was the successor of the KC 85/2. Improvements over the old system were more free RAM for programs (30 Kb instead of 18 Kb), a larger ROM (16 Kb over 4 Kb), which included the Basic interpreter (with the KC85/2, you had to load it from tape).

Both CAOS and Basic interpreter also had some new commands, especially for graphics management but the Basic remains fully compatible with the 85/2 version.

_____

Info provided by Stefan Goehler.


NAME  KC 85/3
MANUFACTURER  R.F.T.
TYPE  Home Computer
ORIGIN  Germany
YEAR  July 1986
END OF PRODUCTION  Somewhere around 1990
BUILT IN LANGUAGE  Basic & CAOS 3.1 (Cassette Aided Operating System)
KEYBOARD  Chicklet keyboard, QWERTZ-Layout, 64 keys. 6 function keys (F1-F6), cursor keys. Keyboard connected to the UC through a mono audio-jack.
CPU  U880 D (Z80 clone)
SPEED  1,75 Mhz
RAM  32 KB (30 kb left for user), expandable up to 4 MB
ROM  16 KB
TEXT MODES  40 columns x 32 lines
GRAPHIC MODES  320 x 256 dots
COLORS  16 foreground, 8 background colours
SOUND  2 tone generators, 2 x 5 octaves.; Stereo when connected to an hi-fi system (constant volume), mono with TV, if connected through FBAS/RGB (32 volume levels)
SIZE / WEIGHT  Base Unit : 380 x 250 x 70 mm. Keyboard : 296 x 152 x 29 mm / 4,8 Kg (including keyboard)
I/O PORTS  Color TV output through PAL HF-modulator, TV output via FBAS/RGB, cassette interface DIN connector (including TTL motor switch voltage) or sound output to a stereo, 2 expansion slots, expansion interface for set-top expansion
OS  CAOS 3.1 (for cassette operation), MicroDOS (if working with diskdrive expansion, CP/M compatible)
POWER SUPPLY  Built-in 25 W PSU
PERIPHERALS  V24 interface, memory cards (16 / 64 kb), EPROM-module, several user ports, 5 ¼'' diskdrive set-top (included own U880 system with 64K RAM !!)
PRICE  1900 East-German Marks (Germany)


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