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A > AI ELECTRONICS  > ABC 20   


AI Electronics
ABC 20

There were several models : 20, 21, 22, 23, 24, 25 and 26. The Model 2x was the successor of the ABC 10, which had a digital tape auxillary memory, supplied with DOSKET-T.

A lot of languages were developed for these computers:
- Dosket : Fortran IV, Basic, Cobol, Macro Assembler.
- CP/M : MBasic, CBasic, Pascal, Cobol 80, Fortran 80, PL/3, etc.

(AI DOSKET is the AI Electronics Operating System.)

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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NAME  ABC 20
MANUFACTURER  AI Electronics
TYPE  Professional Computer
ORIGIN  Japan
YEAR  1979
KEYBOARD  QWERTY, mechanical keyboard
Function keys, arrow keys and numeric keypad
CPU  Z80
SPEED  Unknown
RAM  64 KB
VRAM  Unknown
ROM  4 KB monitor loader
TEXT MODES  80 x 32
GRAPHIC MODES  Unknown
COLORS  Monochrome built-in display
SOUND  Unknown
SIZE / WEIGHT  Surely heavy !
I/O PORTS  SIO : (RS232, current, TTL) : 2 chanels
PIO : (TTL) : 8bits x 2 ports
IEEE
BUILT IN MEDIA  2 floppy Disk units (322 KB)
OS  Dosket & CP/M
POWER SUPPLY  PSU built-in
PERIPHERALS  Winchester type disk memory
Digital cassette tape (3 units)
Floppy disk (2 units)
Light Pen
Color Display
Printer
Graphic printer
XY Plotter
PRICE  Unknown

  
 

This is a big computer, it must be fun to use a beast like that !

 
  

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