DATAMATH CALCULATOR MUSEUM
Texas Instruments TI-1105
|Date of introduction:||1987||Display technology:||LCD|
|New price:||Display size:||8|
|Size:|| 4.3" x 2.5" x
110 x 64 x 10 mm3
|Weight:||1.5 ounces, 44 grams||Serial No:|
|Batteries:||n.a.||Date of manufacture:||mth 06 year 1987 (A)|
|AC-Adapter:||Origin of manufacture:||Taiwan (I)|
|Program steps:||Courtesy of:||Joerg Woerner|
and lively colors, large keys, solar and lots of functionality - this is the
marketing description of the TI-1105 introduced in 1987. It was sold together
with three Number 2 lead pencils and and eraser as "Cool Calc" for the Back-to-School
Three different colors were introduced:
|• TI-1105 Turquoise
• TI-1105 Magenta
• TI-1105 Dark blue
Dismantling this TI-1105 manufactured in
June 1987 by Inventec Corporation in
Taiwan reveals a clean design centered around an unknown single-chip calculator
circuit soldered on a double-sided printed circuit board (PCB) and powered by
four solar cells.
Inspecting the PCB of this TI-1105 calculator brought our attention to a small mark reading IOTI1105-01C and we started compiling a list of the PCB-Marks on calculators manufactured by OEMs for Texas Instruments.
The second generation of the TI-1105 added the [+/-] key of the TI-108.
If you have additions to the above article please email: email@example.com.
© Joerg Woerner, June 7, 2005. No reprints without written permission.