DATAMATH CALCULATOR MUSEUM
Texas Instruments Programmer II
|Date of introduction:||1985||Display technology:||LCD|
|New price:||Display size:||8|
|Size:|| 5.8" x 2.8" x 0.85"
147 x 72 x 22 mm3
|Weight:||3.0 ounces, 84 grams||Serial No:||0068823|
|Batteries:||2*LR44||Date of manufacture:||mth 03 year 1985|
|AC-Adapter:||Origin of manufacture:||Taiwan (C)|
|Program steps:||Courtesy of:||Gerhard Wenzel|
Seems to be identical to the LCD Programmer using the new slanted housing of the TI-55-III and the keyboard of the BA-II.
If you take your time comparing this calculator with all other
members of the second slanted series (BA-54,
TI-57-II) you notice something
very special. The keyboard position doesn't fit to the usual spacing. The ON/C-key
is misplaced and one key is super-sized. You have to open the calculator to get
the answer: This
is not the usual construction of a slanted calculator! A very small
printed-circuit-board, actual the form factor of a modern slimline calculator
like the BA-II, is fitted into the housing.
Recently at the famous calculator collection of the Heinz Nixdorf Museums Forum (HNF) located in Paderborn, Germany a different housing of the Programmer II was discovered. The model of the exhibition uses a larger display frame that covers even the ON/C key.
Read more about George Boole, the inventor of the Boolean algebra.
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© Joerg Woerner, December 5, 2001. No reprints without written permission.