Texas Instruments TI-1788 II

Date of introduction:  1982 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:  82862643
Batteries:   Date of manufacture:  year 1982
AC-Adapter:   Origin of manufacture:  Taiwan
Precision:  8 Integrated circuits:  NEC uPD1032G
Memories:  1    
Program steps:   Courtesy of:  Joerg Woerner

TI-1788-II_P1.jpg (180687 Byte)The TI-1788 II corrected the unusual keyboard layout of the TI-1788 introduced just a few month earlier. Unfortunately is even this revised layout not very convenient, you hit easily the [CE/C] button and repeat your previous calculation!

TI-1788-II_1.jpg (135931 Byte)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.

TI-1788-II_IC.jpg (155843 Byte)TI-1788-II_PCB.jpg (169979 Byte)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.

The next calculator in this line added a currency conversion function. Don't miss the TI-1788 III.

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Joerg Woerner, April 5, 2008. No reprints without written permission.