DATAMATH  CALCULATOR  MUSEUM

Texas Instruments TI-Collège Plus (Pre-series)

Date of introduction:  May 9, 2007
 Available: Feb. 21, 2008
Display technology:  LCD dot matrix
New price:   Display size:  4 * 16 characters
 (5 * 19 for menus)
Size:  6.5" x 3.1" x 0.6"
 166 x 79 x 16 mm³
   
Weight:  3.7 ounces, 104 grams Serial No:  
Batteries:  Solar cells + CR2032 Date of manufacture:  year 2007
AC-Adapter:   Origin of manufacture:  China (N)
Precision:  13 Integrated circuits:  
Memories:  7    
Program steps:   Courtesy of:  Joerg Woerner

Texas Instruments introduced in February 2008 with the TI-Collège Plus the successor of its TI-Collège introduced already in 2005 as the first calculator with keys (e.g. ANNUL), notations and even the menus in French to simplify the use by younger students.

Due to some design problems with the calculator it took until February 2008 before the TI-Collège Plus arrived together with the TI-34 MultiView finally in the store shelves. 

Instead of the then novel 2-line display the TI-Collège Plus features a dot matrix display with 31 * 96 addressable pixels allowing the calculator to display equations as they would be printed in a text book. 

The featured calculator on the left is a very early prototype and makes use of the pre-programmed single-chip microcontroller used in the TI-30XS MultiView. You may have noticed already the use of the decimal point on the result screen instead the comma separator used in France. Much more remarkable is e.g. the [n/d] key responding with the "log" function and the [stats] key opening the Probabilities menue. Just compare the layout of the TI-30XS MultiView with this TI-Collège Plus!

Dismantling the TI-Collège Plus reveals a pretty common construction with two printed circuit boards (PCB's). The main PCB hides the single-chip calculating circuit under a small protection blob of black epoxy and drives the graphing display with a heat sealed fine-pitch connector. The keyboard makes use of a much simpler second PCB and a heat sealed connector, too. The featured calculator was manufacturered by Nam Tai Electronics, Inc., a well-known company with OEM calculator production facilities in Shenzen, China.

Don't miss the battery powered TI-30XB MultiView and its solar-cells operated sibbling TI-30XS MultiView sold since July 2007 and the close relative TI-34 MultiView.

Texas Instruments announced on March 1st, 2010 the TI-84 Plus Operating System version 2.53MP with MathPrint™ mode for free download. The OS 2.53MP enables users to input and view math symbols and formulas, including stacked fractions, in their handhelds exactly as the equations appear in textbooks.


horizontal rule

If you have additions to the above article please email: joerg@datamath.org.

© Joerg Woerner, February 29, 2008. No reprints without written permission.