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Additional Pictures 

 

At first glance you'll notice the origin of the Commodore MM.1:
Santa Clara, California.

This side-view gives you a first impression of the huge Minuteman I.

Both halves of the calculator could be easily seperated. 
Everything feels solid and heavy with the Minuteman 1.

Dismantling the Commodore MM.1 reveals a big surprise:
The printed circuit board (PCB) is identical with the Bowmar 901C
calculator (right) and carries even the PM901-400/E designation.

The dismantled Commodore MM.1 (left) side by side with the Bowmar 901C.
 Both are equipped with an original Klixon™ keyboard but only one with 
the Bowmar Opto-Stic LED display. Please notice the different switches.


horizontal rule

If you have additions to the above article please email: joerg@datamath.org.

© Joerg Woerner, October 1, 2003. No reprints without written permission.