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Additional Pictures 

 

The sales box of the Casio CB-100 Checkbook calculator sold around 1985 in the US.

The Casio CB-100 Checkbook calculator in its sleeve with holders for five credit card and one pen.

 

This Casio CB-100 Checkbook calculator was manufactured in Japan.

The Casio CB-100 Checkbook calculator is powered by a 3V Lithium battery.

The printed circuit board (PCB) of the Casio CB-100 Checkbook calculator is centered
around a NEC uPD1826G single-chip calculator circuit.

Close-up view of the NEC uPD1826G single-chip calculator circuit.


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

Joerg Woerner, November 30, 2019. No reprints without written permission.