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Additional Pictures 

 

This TI-1780 was manufactured by Compal Electronics in Taiwan
in September 1983  (Date code C-0983 mth 09 yr 1983).

The printed circuit board (PCB) of the TI-1780 is centered around
an unknown single-chip calculator circuit.

Close-up view of the unknown single-chip calculator circuit.

Close-up view of the PCB-Mark of a TI-1780.


horizontal rule

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

Joerg Woerner, September 29, 2002. No reprints without written permission.