DATAMATH CALCULATOR MUSEUM
|
DATAMATH CALCULATOR MUSEUM |
The Educator® Business
| Date of introduction: | 2002 | Display technology: | LCD dot matrix |
| New price: | Display size: | 10 (7+2) | |
| Size: | 8.0" x 4.0" x 0.35" | ||
| Weight: | 4.8 ounces | Serial No: | |
| Batteries: | n.a. | Date of manufacture: | |
| AC-Adapter: | Origin of manufacture: | China | |
| Precision: | 13 | Integrated circuits: | Toshiba T6A53 |
| Memories: | 10 | ||
| 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 BA II Plus introduced by Texas Instruments in 1991 developed itself to a very successful business calculator. The one to one replacement from Stokes Publishing Company is this Business overhead calculator.
Overhead™ Calculator is a trademark
of Stokes Publishing Company, Inc.
If you have additions to the above article please email: joerg@datamath.org.
© Joerg Woerner, February 23, 2006. No reprints without written permission.