Texas Instruments TI-1744

Date of introduction:  1982 Display technology:  LCD
New price:   Display size:  8
Size:  3.9" x 2.4" x 0.30"
 100 x 60 x 7.5 mm3
Weight:  1.7 ounces, 47 grams Serial No:  9525844
Batteries:  2*LR43 Date of manufacture:  
AC-Adapter:   Origin of manufacture:  Taiwan
Precision:  8 Integrated circuits:  NEC uPD1831G
Memories:  1    
Program steps:   Courtesy of:  Joerg Woerner

In the year 1982 Texas Instruments had some difficulties to decide whether a calculator was a BASIC one or a SCIENTIFIC one. We know some pairs of similar calculators sold in both fields:



TI-1020 TI-15
TI-1744 TI-18

TI-1744_PCB.jpg (37989 Byte)Same confusion could be noticed with the Integrated Circuits used in these early calculators manufactured in Taiwan. Instead the usual Toshiba IC's you'll discover in the TI-1020 a Sharp LI3009 and in this TI-1744 the brain was developed by NEC (Japan).


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If you have additions to the above article please email:

Joerg Woerner, October 9, 2002. No reprints without written permission.