Texas Instruments TI-1100 II (2nd design)

Date of introduction:  1985 Display technology:  LCD
New price:   Display size:  8
Size:  4.4" x 2.5" x 0.40"
 111 x 64 x 10 mm3
Weight:  1.6 ounces, 45 grams Serial No:  
Batteries:  LR43 Date of manufacture:  mth 11 year 1986
AC-Adapter:   Origin of manufacture:  Taiwan
Precision:  8 Integrated circuits:  Toshiba T6958S
Memories:  1    
Program steps:   Courtesy of:  Joerg Woerner

The TI-1100 II received an enhanced display compared to the original TI-1100 II introduced one year earlier.

ti-1100-II_PCB.jpg (58919 Byte)Dismantling this featured TI-1100 II from the 2nd design manufactured in November 1986 by Inventec Corporation in Taiwan reveals a clean design centered around a Toshiba T6985S single-chip calculator soldered on a double-sided printed circuit board (PCB) and powered by a LR43 battery.

ti-1100-II_FAM.jpg (136087 Byte)
A more stylish variant of this housing could be found with the TI-1103 and TI-1104 calculators. Even the TI-1105 and the later TI-108 make use of the molds.

Some years later, around 1987, the production of the TI-1100 II was shifted to Malaysia. Don't miss the 3rd design of the TI-1100 II. Recently we spotted a TI-1100 II manufactured late in Taiwan late in 1989.


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Joerg Woerner, December 5, 2001. No reprints without written permission.