Personal Computer Museum, Canada's Videogame Museum

Hitachi MB-6890

Hitachi MB-6890
Hitachi MB-6890

Speed1 MHz
Memory32 KB

What's this?


Release Date: 1/1/1980
Manufacturer: Hitachi
Original Retail Price:
Adjusted Inflation Price:
Donated By: Andrew Van Mil
The 6890, which may very well been named since its CPU is the Motorola 6809, is a very powerful computer for its time. With 32K of RAM and a powerful 24K ROM with BASIC Master Level 3.

The computer has some very interesting features. The BREAK key is protected by a plastic housing to prevent accidentally hitting it and a flip-up panel near the front that contains a 40/80 column switch, volume control knob, reset button and power.

This computer is notable as it was the first to support the display of Japanese characters.


This computer is currently interactive in the Museum.

User Comments
Murray on Monday, April 30, 2018
I now have two of these computers, any help on sourcing parts and software would be great.
bill on Tuesday, February 16, 2016
I have several of these plus disk drives, documentation and software if anyone is interested email me at
Daniel Campos on Wednesday, June 3, 2015
Hello! I also have this machine complete with drive unit and original RGB monitor. I want to know if you have any software for it ? Thanks!
Wammy on Friday, February 14, 2014
If I only could find the Kata Hira key... oh wait! Here it is!
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* Inflation data courtesy of Values are approximate using our own calculations.