DATAMATH CALCULATOR MUSEUM
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DATAMATH CALCULATOR MUSEUM |
Texas Instruments TI-1100
| Date of introduction: | 1983 | Display technology: | LCD |
| New price: | Display size: | 8 | |
| Size: | 4.4" x 2.6" x
0.40" 113 x 65 x 10 mm3 |
||
| Weight: | 1.9 ounces, 53 grams | Serial No: | 0658859 |
| Batteries: | LR43 | Date of manufacture: | mth 02 year 1984 |
| AC-Adapter: | Origin of manufacture: | Taiwan (I) | |
| Precision: | 8 | Integrated circuits: | Toshiba T6717AS |
| Memories: | 1 | ||
| Program steps: | Courtesy of: | Joerg Woerner |
The
TI-1100 is very similar to the TI-1706 but uses
a single battery instead the solar cells. The design was unique and replaced soon with
the TI-1100 II.
Dismantling
this TI-1100 manufactured in February 1984 by
Inventec Corporation in
Taiwan reveals a clean design centered around a Toshiba T6717AS single-chip
calculator circuit soldered on a single-sided printed circuit board (PCB) and
powered by a LR43 battery. Please notice that the original design of the
TI-1100 II used a single-sided PCB too, while
later designs switched to a double-sided PCB.
Not
only the calculator brain was developed by Toshiba, the roots of the TI-1100
itself trace back to the Toshiba HB-102.
Inspecting
the PCB of this TI-1100 calculator brought our attention to a small mark reading
I1100-01H and we started compiling a list of the
PCB-Marks on calculators manufactured by OEMs for Texas Instruments.
Compare
some other TI calculators with their siblings manufactured by Toshiba.
If you have additions to the above article please email: joerg@datamath.org.
© Joerg Woerner, September 27, 2002. No reprints without written permission.