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Additional Pictures 

 

The sales box of the Kosmos 1 biorhythm calculator sold around 1978 in the US.

This Kosmos 1 biorhythm calculator was manufactured in Japan.

The Kosmos 1 biorhythm calculator is powered by three AA-sized batteries.

The printed circuit board (PCB) of the Kosmos 1 biorhythm calculator is centered
around a TMC1170 single-chip microcomputer hidden under the display.


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

Joerg Woerner, December 21, 2019. No reprints without written permission.