DATAMATH CALCULATOR MUSEUM
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DATAMATH CALCULATOR MUSEUM |
CAL-Q-TAX calculator by Texas Instruments
| Date of introduction: | 1984 | Display technology: | LED-stick |
| New price: | Display size: | 10 (8 + 2) | |
| Size: | 6.4" x 3.2" x
1.5" 162 x 81 x 37 mm3 |
||
| Weight: | 8.5 ounces, 240 grams | Serial No: | |
| Batteries: | BP1A | Date of manufacture: | |
| AC-Adapter: | AC9131 | Origin of manufacture: | USA |
| Precision: | 13 | Integrated circuits: | TMC0501E, TMC0582, TMC0583, TMC0571, 2*TMC0598 |
| Logic: | AOS - 8 Pending Operations, 9 () | ||
| Memories: | 0-60 | ||
| Program steps: | 480-0 | Courtesy of: | Kirk B. Muri |
The
innovative TI-58 was the perfect base for a lot of
customized calculators. The idea behind these products
was the novelty of the
Solid State Software Modules™ with up to 5000 program steps.
The CAL-Q-TAX application was developed by the Bureau
of National Affairs, Inc., Washington D.C. in 1984 to calculate
Estate and Gift Taxes. Compared to the usual drop-in modules this calculator uses an extender developed
by Hand Held Products.
Don't miss the incotax
application using the same extender for the module.
Compare it with a similar product by the insurance companies Agrippina, Allianz, Lloyd,
LVM, Nordstern
and Victoria or the Bossard screwing joint calculator.
Even the French carmaker Chrysler-Simca used the TI-58, don't miss the Chrysler
Credicavia. Don't
miss the USMC HARRIER flight computer based on
the TI-58 calculator, too.
A colorful calculator appeared with the Pool Water Analysis module.
If you have additions to the above article please email: joerg@datamath.org.
© Joerg Woerner, December 5, 2001. No reprints without written permission.