DATAMATH CALCULATOR MUSEUM
Texas Instruments TI-Primaire Plus (EVT)
|Date of introduction:|| February 2014
Available: June 2014
|Display technology:||LCD dot matrix|
|New price:||Display size:||2 * 11 characters|
|Size:|| 6.8" x 3.2" x 0.6"
172 x 81 x 14 mm³
|Weight:||3.4 ounces, 97 grams||Serial No:||K-EVT-199|
|Batteries:||2*CR2032||Date of manufacture:||year 2014|
|AC-Adapter:||Origin of manufacture:||China (K)|
|Program steps:||Courtesy of:||Xavier Andréani|
Texas Instruments introduced in 2014 with the TI-Primaire Plus in France the successor of the Galaxy 10. Matching the design of the TI-106 II and the technology of the TI-30XS MultiView the TI-Primaire Plus is a very capable calculator for young students.
Like the original Galaxy 10 introduced already in 1988 allows the TI-Primaire Plus fractional arithmetic. You can use two different modes:
Euklid's division: 23 / 4 = 5 (Q) 3 (R)
With the SIMP and F-D-key you can shorten results and convert between fractional and decimal display:
• 35/70 SIMP 1/2 F-D 0.5
The TI-Primaire Plus features an interesting dot matrix display with 2 rows of 11 characters using each 5 * 7 addressable pixels allowing the calculator to display results as they would be printed in a text book.
Dismantling this TI-Primaire Plus with the serial number K-EVT-199 (K for Kinpo electronics, Inc. and EVT for Engineering Validation Test) 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.
Don't miss the next evolution of the TI-Primaire Plus.
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© Joerg Woerner, May 10, 2015. No reprints without written permission.