DATAMATH CALCULATOR MUSEUM
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DATAMATH CALCULATOR MUSEUM |
Texas Instruments TI-620
| Date of introduction: | 1992 | Display technology: | LCD |
| New price: | Display size: | 10 | |
| Size: | 4.7" x 5.0" x
0.80" 120 x 128 x 20 mm3 |
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| Weight: | 3.6 ounces, 102 grams | Serial No: | |
| Batteries: | n.a. | Date of manufacture: | mth 12 year 1993 |
| AC-Adapter: | Origin of manufacture: | Malaysia (I) | |
| Precision: | 10 | Integrated circuits: | |
| Memories: | 1 | ||
| Program steps: | Courtesy of: | Joerg Woerner | |
| Download manual: | 
(EU: 4.7 MByte) |
Texas
Instruments introduced in Europe with the TI-620 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.
In the United States a very similar calculator was sold as BA-20.
Dismantling this TI-620 manufactured in December 1993 by
Inventec Corporation in
Malaysia reveals indeed a printed circuit board (PCB) with the designation
"BA-20-02B".
The housing of the TI-620 in known from the earlier TI-610 calculator.
If you have additions to the above article please email: joerg@datamath.org.
© Joerg Woerner, December 5, 2001. No reprints without written permission.