DATAMATH CALCULATOR MUSEUM
Texas Instruments TI-1788
|Date of introduction:||1981||Display technology:||LCD|
|New price:||Display size:||8|
|Size:|| 3.6" x 2.3" x 0.3"
91 x 57 x 8 mm3
|Weight:||1.3 ounces, 38 grams||Serial No:||9166539|
|Batteries:||Date of manufacture:||year 1981|
|AC-Adapter:||Origin of manufacture:||Taiwan|
|Precision:||8||Integrated circuits:||NEC uPD1032G|
|Program steps:||Courtesy of:||Joerg Woerner|
TI-1788 combines the clock and stopwatch function
known from the TI-1790 with a simple
4-function calculator in a very small housing. The unusual layout of the
keyboard was corrected with the TI-1788 II introduced only
six month later.
The backside of the calculator reveals another unusual feature - a hidden POWER switch. The calculator was obviously manufactured in Taiwan but we are not able to trace back its roots.
The internal construction of the TI-1788 II is typical for a far-east manufactured calculator of the 1980's and looks familiar to us. The single-chip calculator circuit was manufactured by NEC, Japan.
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© Joerg Woerner, March 5, 2009. No reprints without written permission.