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Additional Pictures 

 

The Olivetti DII Checkbook Calculator in its sleeve with holder for a checkbook, credit cards and pen.

This Olivetti DII Checkbook Calculator was manufactured in June 1990 in Thailand.

The printed circuit board (PCB) of the Olivetti DII manufactured in June 1990 doesn't reveal type and manufacturer of its
single-chip calculator circuit but we are almost positive to spot a Toshiba T7752S.


Close-up view of the Toshiba T7752S single-chip calculator circuit.

Close-up view of the PCB-Mark of the DII.




horizontal rule

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

Joerg Woerner, February 27, 2020. No reprints without written permission.