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Texas Instruments TI-7 MathMate

Date of introduction:  1993 Display technology:  LCD
New price:  ($7.99 in 2004) Display size:  8
Size:  4.6" x 2.5" x 0.35"
 116 x 64 x 9 mm3
   
Weight:  1.8 ounces, 50 grams Serial No:  
Batteries:  CR1220 Date of manufacture:  mth 10 year 2004 (F)
AC-Adapter:   Origin of manufacture:  China (N)
Precision:  8 Integrated circuits:  
Memories:  1    
Program steps:   Courtesy of:  Joerg Woerner

TI-7_N1004F_Back.jpg (135111 Byte)The original TI-7 MathMate was introduced already in 1993 and looks even in 2009 familiar. This second generation of the TI-7 MathMate looks identical to the original design but added a small battery to the solar cells.
(Picture on the left shows the 1993 model)

TI-7_N1004F_PCB.jpg (244925 Byte)Dismantling a TI-7 MathMate assembled in October 2004 by Nam Tai Electronics, Inc. in China demonstrates a clean internal construction but the calculator circuit doesn't reveal its genes. Please notice the already mentioned CR1220 lithium battery next to the solar cells.

Stokes Publishing Company, Inc. based in Sunnyvale, California sold a companion for the teacher, view the Elementary.

AOS™ is a trademark of Texas Instruments.
Math Explorer ™ is a trademark of Texas Instruments.

 

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

© Joerg Woerner, April 13, 2009. No reprints without written permission.