Texas Instruments TI-1105

Date of introduction:  1988 Display technology:  LCD
New price:   Display size:  8
Size:  4.3" x 2.5" x 0.40"
 110 x 64 x 10 mm3
Weight:  1.5 ounces, 44 grams Serial No:  
Batteries:  n.a. Date of manufacture:  mth 02 year 1988
AC-Adapter:   Origin of manufacture:  Taiwan (I)
Precision:  8 Integrated circuits:  
Memories:  1    
Program steps:   Courtesy of:  Mark Bollman

TI-1105_1_Back.jpg (166058 Byte)Bold and lively colors, large keys, solar and lots of functionality - this is the marketing description of the TI-1105 introduced in 1987. This second generation added the [+/-] key of the TI-108.

Three different colors were introduced:

TI-1105 Turquoise
TI-1105 Magenta
TI-1105 Dark blue

TI-1105_1_PCB.jpg (233655 Byte)Dismantling this Texas Instruments TI-1105 manufactured in February 1988 reveals a typical far-east design of the late 80's. The printed circuit board (PCB) of the calculator is obviously borrowed from the TI-108 (Hint: search for the PCB designator at the lower left part).

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Joerg Woerner, June 7, 2005. No reprints without written permission.