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Additional Pictures 

 

This TI-1020 was manufactured in December 1980
in Taiwan (Date code 4980 week 49 yr 1980).

The dismantled TI-1020 hides its true manufacturer.

The printed circuit board (PCB) of the TI-1020 is centered
around a Sharp LI3009 single-chip calculator circuit.

The Sharp LI3009 Integrated Circuit.


horizontal rule

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

Joerg Woerner, March 4, 2010. No reprints without written permission.