DATAMATH CALCULATOR MUSEUM
The Educator® GALACTIC 9X
|Date of introduction:||1992||Display technology:||LCD|
|New price:||Display size:||10 (6 + 2)|
|Size:||4.5" x 7.2" x 0.35"|
|Weight:||5.0 ounces||Serial No:|
|Batteries:||n.a.||Date of manufacture:|
|AC-Adapter:||Origin of manufacture:||China|
|Precision:||12||Integrated circuits:||Toshiba T6A60|
|Program steps:||Courtesy of:||Joerg Woerner|
The California based company Stokes Publishing Company, Inc. distributes under the label "The Educator®" calculators optimized for teaching purposes. William T. Stokes filed already July 30, 1991 the US Patent Application U.S. Pat. No. 5,035,502 with the title "Transparent calculator for overhead projection".
Both the keyboard and the display are made from translucent glass and plastics. Using a simple overhead projector the teacher could demonstrate easily the function of a calculator.
The Galaxy 9x introduced by Texas Instruments in the year 1992 developed itself to a very successful school calculator. The one to one replacement from Stokes Publishing Company is this GALACTIC 9X overhead calculator.
Funny to know that this Galactic 9X sports on the backside of the housing small solar cells. Very clever approach, they are illuminated from the overhead projector and eliminate batteries.
Overhead™ Calculator is a trademark
of Stokes Publishing Company, Inc.
If you have additions to the above article please email: email@example.com.
© Joerg Woerner, October 13, 2002. No reprints without written permission.