TI-2500 B Datamath calculator
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The TI-2500 B Datamath calculator is externally identical to earlier versions apart from the lack of a combined CE/D button. The 'B' designation indicates that the calculator is fitted with a Bowmar Opto-stick rather than the standard Texas Instruments display of previous versions. The calculator has an 8 digit red LED display with 4 functions and is powered either by 3X AA rechargeable or 4X AA standard batteries.
Information taken from vintagecalculators.com.
Manufacturer: Texas Instruments
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This exhibit has a reference ID of CH66372. Please quote this reference ID in any communication with the Centre for Computing History.