DATAMATH CALCULATOR MUSEUM
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DATAMATH CALCULATOR MUSEUM |
Texas Instruments BA-20
| Date of introduction: | 1992 | Display technology: | LCD |
| New price: | ($24.99 in 2003) | Display size: | 10 |
| Size: | 4.7" x 5.0" x 0.8" | ||
| Weight: | 3.8 ounces | Serial No: | |
| Batteries: | n.a. | Date of manufacture: | mth 02 year 2002 |
| 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 the year
1986 a very useful calculator.
Beside the basic calculator functions 6 additional keys enable the COST, SELL,
MARGIN calculations. You enter either two of the variables and get instantly the
result of the remaining value.
The
technology inside this BA-20 manufactured in 2002 looks very similiar to the
first version - a 16 years old design. Even the Integrated Circuit makes use of
a traditional housing instead the common Chip-on-Board (COB)
technology.
In Europe a very similar calculator was sold as TI-620.
An earlier version of the BA-20 sports an integrated clock like the European TI-610.
If you have additions to the above article please email: joerg@datamath.org.
© Joerg Woerner, December 5, 2001. No reprints without written permission.