Click Here to visit our Sponsor
The History of Computing The Magazine Have Fun there ! Buy goodies to support us
  Mistake ? You have mr info ? Click here !Add Info     Search     Click here use the advanced search engine
Browse console museumBrowse pong museum


ZX Spectrum T-shirts!

see details
ZX81 T-shirts!

see details
Ready prompt T-shirts!

see details
Arcade cherry T-shirts!

see details
Atari joystick T-shirts!

see details
Spiral program T-shirts!

see details
Battle Zone T-shirts!

see details
Vectrex ship T-shirts!

see details
Atari ST bombs T-shirts!

see details
Elite spaceship t-shirt T-shirts!

see details
Moon Lander T-shirts!

see details
Competition Pro Joystick T-shirts!

see details
C64 maze generator T-shirts!

see details
Pak Pak Monster T-shirts!

see details
BASIC code T-shirts!

see details
Pixel adventure T-shirts!

see details
Vector ship T-shirts!

see details
Breakout T-shirts!

see details

C > CONITEC > Prof80   


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.

Please consider donating your old computer / videogame system to or one of our partners from anywhere in the world (Europe, America, Asia, etc.).


There were actually two computer systems with the name PROF80:
- The German Comitec system, which was an ECB-bus based Eurocard (optional graphics board).
- The French Pentasonic system which was a TRS-80 Model III clone. This is the displayed system.
There also was a compatible small interface named PROF80 for the TRS-80 Model I and III to be placed between the main board and the CPU, which added an boot menu and RAM bank switching. This allowed CP/M on these machines. The bank switching is different than the LNW-scheme.

Wednesday 25th July 2012
Fred Jan Kraan (Netherlands)
Yet another computer museum


NAME  Prof80
TYPE  Home Computer
ORIGIN  Germany
YEAR  September 1982
BUILT IN LANGUAGE  TRS compatible Basic interpreter
KEYBOARD  As the user chooses
RAM  64 KB
VRAM  2 KB (text mode) - 16 KB (optional graphics mode)
ROM  12 KB
TEXT MODES  32 or 64 columns x 16 lines
COLORS  Monochrome
SOUND  Built-in speaker, 1 channel
I/O PORTS  Serial, Parallel, Tape recorder, Composite video, FDD unit
BUILT IN MEDIA  External single or dual FDD unit, 5.25'' or 8''
OS  OS-80, NewDos-80, CP/M 2.2 then 3.X
POWER SUPPLY  +5V 2A, +12V 1A, -12V 0.5A
PERIPHERALS  All the TRS-80 extensions
PRICE  100 (bare board)

Please buy a t-shirt to support us !
Ready prompt
ZX Spectrum
Arcade cherry
Spiral program
Atari joystick
Battle Zone
Vectrex ship
C64 maze generator
Moon Lander
Competition Pro Joystick
Atari ST bombs
Elite spaceship t-shirt
Commodore 64 prompt
Pak Pak Monster
Pixel Deer
BASIC code
Shooting gallery
3D Cubes
Pixel adventure
Vector ship

Related Ebay auctions in real time - click to buy yours

see more Conitec Prof80 Ebay auctions !

Click here to go to the top of the page   
Contact us | members | about | donate old-systems | FAQ
OLD-COMPUTERS.COM is hosted by - NYI (New York Internet) -