DATAMATH CALCULATOR MUSEUM
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DATAMATH CALCULATOR MUSEUM |
WG&L incotax (1981,82) calculator by Texas Instruments
| Date of introduction: | 1981 | 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: | 1002659 |
| Batteries: | BP1A | Date of manufacture: | wk 29 year 1980 |
| AC-Adapter: | AC9131 | Origin of manufacture: | USA (ATA) |
| Precision: | 13 | Integrated circuits: | TMC0501E,
TMC0580 (CD2400),
TMC0580 (CD2401),
TMC0573, TMC0591, Toshiba TC5047AP TMC0540 (CD5704) |
| Logic: | AOS - 8 Pending Operations, 9 () | ||
| Memories: | 0-60 | ||
| Program steps: | 480-0 | Courtesy of: | Joerg Woerner |
The
innovative TI-58C 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 incotax application was developed
by the Bureau
of National Affairs, Inc., Washington D.C. to calculate
Federal Income Taxes and distributed by Warren,
Gorham & Lamont, Valhalla NY (WG&L).
The
different programs of the incotax application used various overlays to the
already modified calculator keyboard of the TI-58C.
Don't miss the 84' edition of the WG&L incotax
calculator and the WG&L incotax 1985 calculator
sporting an external program module.
Warren,
Gorham & Lamont, Valhalla NY was founded in the 1950s, but traces its roots
back to 1882, when Willard Warren started a weekly, the Connecticut Real Estate
Record and Building News (later and still today, The Commercial Record). The
Thomson Corporation acquired Warren, Gorham & Lamont (WG&L) in 1980. For
more than three decades, WG&L was a major information source for finance
professionals in companies of all sizes and industries. The WG&L product
line includes some of the most valued newsletters, journals and treatises in the
legal, tax and accounting fields. WG&L remains one of the most respected
brands in the industry. In 1996, the tax publishing activities of Warren, Gorham
& Lamont were merged with RIA.
WG&L ® is a trademark
of
Warren,
Gorham & Lamont, Valhalla NY.
If you have additions to the above article please email: joerg@datamath.org.
© Joerg Woerner, November 20, 2013. No reprints without written permission.