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C > CANON  > CX-1 / BX-3   


Canon
CX-1 / BX-3

This business computer has a monitor and two 5.25" drives built-in. The drives had a door lock so the disk could not be removed while a file was open. The CX-1 uses MCX (Media for Canon X series) as its operating system, which is similar to CP/M.

The character matrix consists of 5x7 dots for normal characters, and of 7x9 for semi-graphic characters. There was a graphic option in Japan (300 x 260), but it never became available in the US.

The Canon BX-3 was the same machine except the CRT was replaced by a Fluorescent Display and a thermal printer.

We need more info about this computer ! If you designed, used, or have more info about this system, please send us pictures or anything you might find useful.

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CX-1 was one of the first computer I worked on, just after Olivetti P6060 and Apple II. I wrote a disassembler to understand how MCX and the utilities worked. It was very instructive, and it was a lot of time ago.

          
Friday 10th July 2015
Alberto Pellizzari (Italy)

My first Computer too. Everything start with this. Had no acknowledge of how a Computer works. We had this on board mv Finnarctis 1982. My original job was wireless operator and I was very curios of the Computers. So, I learned the OS and looked at code in the programs and finally I managed to program some on board needed porgs. I also have a fully functioning CX-1 at home, nice piece.

          
Sunday 7th June 2015
Martti Saukkonen (Finland)
www.atkapua.net

I remember this computer well, I was working at Canon Australia at the time writing software. I wrote a word processor for it which was sold with it. This was back in the days that the hardware supplier also had to have a library of software because each system had their own unique OS version.

          
Friday 12th April 2013
Steve (Australia)

 

NAME  CX-1 / BX-3
MANUFACTURER  Canon
TYPE  Professional Computer
ORIGIN  Japan
YEAR  december 1981
KEYBOARD  Full-stroke keyboard with separated numeric keypad.
CPU  6809
SPEED  1 Mhz
RAM  64 KB (up to 128 KB)
ROM  4 KB
TEXT MODES  80 x 24
GRAPHIC MODES  Optional (300 x 260)
COLORS  monochrome (green & black)
SOUND  plain one tone beep
SIZE / WEIGHT  56 (W) x 64 (L) x 33 (H) cm (20-7/8
I/O PORTS  36 Pin Centronics Parallel connector, 3 x optional RS232 ports, optional GP-IB port
BUILT IN MEDIA  two 5.25'' disk drives (327,680 Bytes each)
OS  MCX (Media for Canon X Series), similar to CP/M
POWER SUPPLY  Built-in PSU
PERIPHERALS  External dual 8'' floppy drives (X-8330), graphic card, 20 MB hard-disk


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