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"
139 x 76 x 42 mm3
|Weight:||6.7 ounces, 191 grams||Serial No:||2500-II-256861|
|Batteries:||2*AA NiCd||Date of manufacture:||wk 32 year 1975|
|AC-Adapter:||AC9130||Origin of manufacture:||USA|
|Program steps:||Courtesy of:||Joerg Woerner|
|Download manual:||(US: 2.5M Bytes)|
Datamath II alias TI-2500-II is a quite funny calculator. It uses the modern
electronics of the stylish TI-1500 calculator in the old-fashioned Datamath
housing. It was introduced late and never a big success.
The main difference to the other Datamath calculators is the added [%] key and the usage of only 2 rechargeable NiCd batteries. Take a look on the Version 1 of the Datamath!
A more detailed comparison between the ten known Datamath Versions could be found here.
The Datamath II seems to be together with the TI-150 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.
The TI-2500-II is featured in the Texas Instruments
Deutschland GmbH leaflet
ER-1975 dated 1975.
If you have additions to the above article please email: firstname.lastname@example.org.
© Joerg Woerner, December 5, 2001. No reprints without written permission.