DATAMATH CALCULATOR MUSEUM
Texas Instruments TI-1100 II (Prototype)
|Date of introduction:||(1985)||Display technology:||LCD|
|New price:||Display size:||8|
|Size:|| 4.4" x 2.6" x 0.35"
112 x 65 x 8 mm≥
|Weight:||1.8 ounces, 51 grams||Serial No:|
|Batteries:||LR43||Date of manufacture:||mth 10 year 1984|
|AC-Adapter:||Origin of manufacture:||Taiwan (I)|
|Precision:||8||Integrated circuits:||Toshiba T6958S|
|Program steps:||Courtesy of:||Joerg Woerner|
TI-1100 II followed the short-lived TI-1100
introduced in 1983 and features an enhanced keyboard.
Dismantling this TI-1100 II Prototype manufactured in October 1984 by Inventec Corporation in Taiwan reveals a clean design centered around a Toshiba T6985S single-chip calculator soldered on a single-sided printed circuit board (PCB) and powered by a LR43 battery. Please notice that the original TI-1100 used a single-sided PCB too, while the final design of the TI-1100 II switched to a double-sided PCB.
Inspecting the PCB of this TI-1100 II Prototype calculator brought our attention to two small marks reading ITI1100-02A respectively ITI1101-02A and we started compiling a list of the PCB-Marks on calculators manufactured by OEMs for Texas Instruments.
If you have additions to the above article please email: email@example.com.
© Joerg Woerner, May 20, 2020. No reprints without written permission.