title, categories, types, origins, years, cpus, params
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CONITEC Prof80
Computers
Home Computer
Germany
1982
Z80A
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Prof80
/media/museum/photos/prof80_system_s1.jpg
/companies/conitec
CONITEC
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NAME
Prof80
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MANUFACTURER
Conitec
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TYPE
Home Computer
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ORIGIN
Germany
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YEAR
September 1982
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BUILT IN LANGUAGE
TRS compatible Basic interpreter
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KEYBOARD
As the user chooses
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CPU
Z80A
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SPEED
6 MHz
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RAM
64 KB
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VRAM
2 KB (text mode) - 16 KB (optional graphics mode)
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ROM
12 KB
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TEXT MODES
32 or 64 columns x 16 lines
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GRAPHIC MODES
Unknown
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COLORS
Monochrome
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SOUND
Built-in speaker, 1 channel
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I/O PORTS
Serial, Parallel, Tape recorder, Composite video, FDD unit
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BUILT IN MEDIA
External single or dual FDD unit, 5.25'' or 8''
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OS
OS-80, NewDos-80, CP/M 2.2 then 3.X
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POWER SUPPLY
+5V 2A, +12V 1A, -12V 0.5A
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PERIPHERALS
All the TRS-80 extensions
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PRICE
100 (bare board)
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966
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COMPLETE SYSTEM
Complete system along with the 8" floppy drive cased in its "shoes box"
/media/museum/photos/prof80_system_s2.jpg
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REAR SIDE
**(1)** Parallel, Serial and Floppy drive connectors\
**(2)** Tape recorder DIN plug\
**(3)** Composite video output\
**(4)** There was even a time counter! But it was disconnected after 42 hours of use
/media/museum/photos/prof80_rearside_s1.jpg
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KEYBOARD #1
The keyboard comes from the original video terminal.
/media/museum/photos/prof80_keyboard_s1.jpg
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KEYBOARD #2
The keyboard matrix has been wired by hand.
/media/museum/photos/prof80_keyboard_s2.jpg
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THE PROF80 BOARD
**(1)** Keyboard connector\
**(2)** Z80A processor\
**(3)** High resolution graphics card with 16 KB RAM\
**(4)** Main RAM chips. In this version, only 3 rows of 16 KB are installed\
**(5)** 8" floppy drive controller add-on card\
**(6)** Z80 data and address buses connector\
**(7)** Floppy drive connector\
**(8)** Parallel port connector
/media/museum/photos/prof80_mainboard_s2.jpg
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POWER SUPPLY
Dual power supply unit. One for the main board (round transformer), one for the display unit.
This computer was never sold in computer stores. It is an homebrew machine built around an unique board called PROF80.
The Prof 80 was a CPM Board for CP/m 2.2 or (later) 3.X., manufactured by Conitec, Dieburg, Germany. There is also a branch in US. The company still exists, and the chief designer of the board, Joachim Hanst, is still working there.
It was sold in France in kit form by the Pentasonic stores chain. User had to solder all the components onto the bare board.
The PROF80 board was fully compatible with the Tandy Trs-80 MOD III, and featured 64 KB of RAM, serial and parallel ports, floppy drive controller, video and tape recorder interfaces and a GRIP (Graphical IO-Processor). The Basic interpreter was the LNW version.
Various systems were designed by private persons around this board, mainly in Germany. From simple training computers up to complete professional system.
The version pictured here was very carefully built from an old video terminal. It featured some enhancements allowing the use of the 8" floppy disk drive as well as graphic capabilities.