DATAMATH CALCULATOR MUSEUM
Texas Instruments TI-2500 / Datamath Version 3
|Date of introduction:||August 1973||Display technology:||LED modules + lens|
|New price:||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:||2500024221|
|Batteries:||3*AA NiCd or 4*AA Alkaline||Date of manufacture:|
|AC-Adapter:||AC9130 or AC9120||Origin of manufacture:||USA|
|Program steps:||Courtesy of:||Joerg Woerner|
|Download manual:||(US: 2.4 MByte)|
third version of the different Datamath calculators could be easily recognized
at the nice battery compartment on the bottom. This calculator uses either 3 rechargable
NiCd batteries or 4 alkaline cells instead the 4 built-in NiCd batteries
behind the closed bottom of the Version 2.
A more detailled comparison between the ten known Datamath Versions could be found here.
In October, 1973 with the TI-2510 a Datamath with absence of rechargable batteries was introduced.
The Version 3 of the Datamath was later renamed to TI-2500B. The only difference we discovered up to now is the changed display type. Don't miss the first prototypes of the TI-2500B.
Read more about Texas Instruments' "Calculator-on-a-Chip".
The last evolution step of the Datamath calculator was the odd TI-2500-II introduced more than two years after the original type.
Datamath™ is a trademark of Texas Instruments.
If you have additions to the above article please email: email@example.com.
© Joerg Woerner, December 5, 2001. No reprints without written permission.