The Educator® GALACTIC 40SX

Date of introduction:  1993 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 T6A59
Memories:  1    
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 40sx introduced by Texas Instruments in the year 1991 developed itself to a very successful school calculator. The one to one replacement from Stokes Publishing Company is this GALACTIC 40SX overhead calculator.

Overhead™ Calculator is a trademark of Stokes Publishing Company, Inc.

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© Joerg Woerner, December 5, 2001. No reprints without written permission.