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Additional Pictures 

 

This Royal DT 80 (Version 2) calculator was manufactured in 1986 by Cal-Comp Electronics in Taiwan.

The printed circuit board (PCB) of the Royal DT 80 (Version 2) calculator is
centered around a Sharp LI3135MS single-chip calculator circuit.

Close-up view of the Sharp LI3135MS single-chip calculator circuit.

Close-up view of the PCB-Mark of a later DT-80.


horizontal rule

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

Joerg Woerner, April 13, 2020. No reprints without written permission.