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Texas Instruments BA-20 (2002)

Date of introduction:  August 2002 Display technology:  LCD
New price:  $24.99 (SRP 2006) Display size:  10
Size:  4.7" x 5.0" x 0.80"
 120 x 128 x 20 mm3
   
Weight:  3.9 ounces, 110 grams Serial No:  
Batteries:  n.a. Date of manufacture:  mth 08 year 2006 (C)
AC-Adapter:   Origin of manufacture:  China (S)
Precision:  10 Integrated circuits:  
Memories:  1    
Program steps:   Courtesy of:  Joerg Woerner

Texas Instruments introduced in the United States with the BA-20 already in 1986 a very useful calculator. Beside the basic calculator functions six additional keys enable the COST, SELL, MARGIN calculations. You enter either two of the variables and get instantly the result of the remaining value.

Dismantling this BA-20 manufactured in August 2006 reveals no major differences to the previous model of the BA-20 introduced in 1998 and sporting smaller solar cells. Even the Integrated Circuit makes use of a traditional housing instead the then common Chip-on-Board (COB) technology.

In Europe a very similar calculator was sold as TI-620.



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If you have additions to the above article please email: joerg@datamath.org.

Joerg Woerner, January 20, 2011. No reprints without written permission.