DATAMATH CALCULATOR MUSEUM
|
DATAMATH CALCULATOR MUSEUM |
The Educator® TI-34 II
| Date of introduction: | 2001 | Display technology: | LCD |
| New price: | $95 | Display size: | 11 characters and 10 +2 |
| Size: | 8.3" x 4.2" x 0.40" 210 x 107 x 10 mm3 |
||
| Weight: | 5.9 ounces, 170 grams | Serial No: | |
| Batteries: | CR2032 | Date of manufacture: | year 2005 |
| AC-Adapter: | Origin of manufacture: | China | |
| Precision: | 11 | Integrated circuits: | |
| Memories: | 5 | ||
| 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 TI-34 II introduced by Texas
Instruments in 1999 developed itself to a very successful school
calculator. The one to one replacement from Stokes Publishing Company is this
TI-15 Overhead calculator.
The
internal construction of the Stokes calculator looks very robust. Both the
display and the keyboard make use of support frames. The connectors to the
printed circuit board and a lot of screws to make it shock resistant.
Please notice the TI-40(2) designation etched on the PCB (printed circuit
board).
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, November 21, 2007. No reprints without written permission.