DATAMATH CALCULATOR MUSEUM
Texas Instruments TI-108
|Date of introduction:||1988||Display technology:||LCD|
|New price:||($5.99 in 2003)||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 08 year 1988 (A)|
|AC-Adapter:||Origin of manufacture:||Taiwan (I)|
|Program steps:||Courtesy of:||Joerg Woerner|
second generation TI-108 looks completely
different to its predecessor, please focus on the position of the solar cells
and the size of the display frame. Actually the calculator is around 0.2"
(6 mm) smaller. We know a very similar calculator with the
Dismantling this TI-108 manufactured in August 1988 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-108 calculator brought our attention to a small mark reading IOTI108D-01B, we noticed a similar mark already with the second generation of the TI-1105 introduced in 1988, too. We started compiling a list of the PCB-Marks on calculators manufactured by OEMs for Texas Instruments.
Starting in 1992 the TI-108 is using smaller solar cells but the design changes are barely noticeable. Please find a detailed overview of the different hardware versions of the TI-108 calculators between 1988 and 2016 here.
Stokes Publishing Company, Inc. based in Sunnyvale, California
sold a companion for the teacher, view the Basic.
If you have additions to the above article please email: firstname.lastname@example.org.
© Joerg Woerner, February 18, 2012. No reprints without written permission.