DATAMATH CALCULATOR MUSEUM
|
DATAMATH CALCULATOR MUSEUM |
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 categories:
Similar
confusion could be noticed with the Integrated Circuits used in these early
calculators manufactured in Taiwan for Texas Instruments. Instead the usual
Toshiba ICs you will discover in the TI-1020 a Sharp LI3009 and the calculating
brain of this TI-1744
was developed by NEC (Japan). The uPD1831G single-chip calculator circuit is a
stripped down variation of the uPD1833G located in Account Manager calculators
like the National Semiconductor
NS 103A or TI-2200.
Don't miss the Canon card
F-32 Mathematic Calculator making use
of the complete uPD1831G feature set.
If you have additions to the above article please email: joerg@datamath.org.
© Joerg Woerner, October 9, 2002. No reprints without written permission.