Datamath Commemorative Calculator

"DALLAS (September 21, 1972) „A line of three new calculators introduced today marks the formal entry of Texas Instruments into the electronic calculator market. The three new calculators are the TI-2500 Datamath™ portable calculator and the TI-3000 and TI-3500 desk models.“
© Texas Instruments, More in the History of Innovation.

To celebrate the 30th anniversary of the wonderful TI-2500 Datamath™ calculator the Datamath Calculator Museum gives you one as a present! 

Compared to the old-fashioned original calculator this Windows™ compatible Datamath Commemorative replaces the 4-bit single-chip calculator circuit with Pentium™ power, lacks the acid NiCd rechargable batteries and features even an Online-Manual."

Download it in the DATAMATH CALCULATOR MUSEUM.