DATAMATH CALCULATOR MUSEUM
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DATAMATH CALCULATOR MUSEUM |
Texas Instruments Business Card
| Date of introduction: | 1979 | Display technology: | LCD |
| New price: | $35 (October, 1981) |
Display size: | 8 |
| Size: | 3.8" x 2.3" x 0.25" | ||
| Weight: | 1.2 ounces | Serial No: | |
| Batteries: | 2*L122 | Date of manufacture: | wk 48 year 1979 |
| AC-Adapter: | Origin of manufacture: | El Salvador | |
| Precision: | 8 | Integrated circuits: | TP032x |
| Memories: | 1 | ||
| Program steps: | Courtesy of: | Stu Mulne |
This
stylish Business Card looks different to all but one Texas Instruments products you
know. It is the rare sibbling of the TI-1760 DataCard
introduced in 1979. Main difference is the additional row of keys and the
2ND-key never found in a "Basic" calculator. A deeper exploration of
the keyboard reveals some financial keys as second function of the operation
keys, a layout unknown with calculators developed by Texas Instruments.
Dismantling
the Business Card reveals a design very similar to the TI-1760 DataCard. No
doubts that this cutie uses a calculator chip of the TP0320 family instead the
TP0311 of the Basic-line. You know the TP0320 calculator chip from products
like:
 | TP0320 TI Investment Analyst |
| TP0321 TI-50 |
| TP0322 TI-Business Analyst-II |
| TP0323 TI-53 |
| TP0324 TI-35 |
| TP0326 TI-38 and TI-20 |
But we placed these calculators in the "Scientific and
Financial" section of the Museum...
If you have additions to the above article please email: joerg@datamath.org.
© Joerg Woerner, January 22, 2003. No reprints without written permission.