DATAMATH CALCULATOR MUSEUM
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DATAMATH CALCULATOR MUSEUM |
Texas Instruments TI-2500-II / Datamath II
| Date of introduction: | November 11, 1974 | Display technology: | LED-stick |
| New price: | $49.95, DM 148.00 | Display size: | 8 |
| Size: | 5.5" x 3.0" x 1.7" | ||
| Weight: | 10 ounces | Serial No: | 2500-II-256861 |
| Batteries: | 2*AA NiCd | Date of manufacture: | wk 32 year 1975 |
| AC-Adapter: | AC9130 | Origin of manufacture: | USA |
| Precision: | Integrated circuits: | TMS0803 | |
| Memories: | |||
| Program steps: | Courtesy of: | Joerg Woerner | |
| Download manual: | 
(US: 2.5 MByte) |
The
Datamath II alias TI-2500-II is a quite funny calculator. It uses the modern
electronics of the stylish TI-1500 calculator in the oldfashioned Datamath
housing. It was introduced late and never a big success.
Tha main difference to the other Datamath calculators is the
added %-key and the usage of only 2 rechargable NiCd batteries. Take a look on
the Version 1 of the Datamath !
A more detailled comparison between the ten known Datamath Versions could be found here.
The Datamath II seems to be the last TI calculator using the standard Klixon™ keyboard technology.
In Spain this calculator was labeled TI-2500 II without the dash at the series II designation.
Datamath™ and Klixon™ are trademarks of Texas Instruments.
If you have additions to the above article please email: joerg@datamath.org.
© Joerg Woerner, December 5, 2001. No reprints without written permission.