DATAMATH CALCULATOR MUSEUM |
Texas Instruments TI-7 MathMate
Date of introduction: | 1991 | Display technology: | LCD |
New price: | ($7.99 in 2003) | Display size: | 8 |
Size: | 4.6" x 2.5" x
0.35" 116 x 64 x 9 mm3 |
||
Weight: | 1.6 ounces, 46 grams | Serial No: | |
Batteries: | Date of manufacture: | wk 49 year 1991 | |
AC-Adapter: | Origin of manufacture: | USA (LTA) | |
Precision: | 8 | Integrated circuits: | Toshiba 6M13S |
Memories: | 1 | ||
Program steps: | Courtesy of: | Joerg Woerner |
Is this four banger really a scientific calculator? You know basic calculators like the TI-106 sporting the square-root function. And this one? The MathMate uses the AOS system introduced with the SR-52 more than 20 years ago.
Try this calculation on your four banger: 2 + 3 * 4 = ?
The MathMate gives you the correct answer of 14 like the big brother Math
Explorer. Don't miss the stylist and innovative TI-10.
Texas Instruments was always listening for the demands of the
classroom. Read
some guidelines how to select the right calculator to ensure long-term
satisfaction:
• Solar Power: Eliminates the need for batteries. The TI
ANYLITE™ technology allows operation even in low light. • Durability: Plastic keys are tougher and more tamper-proof than rubber keys. An extra window protects the LCD display and the solar cells. • Keyboard: Color coding helps children quickly identify functional key groupings. Large, well spaced keys are easier to find and press. • Packaging: With a convenient storage caddy 10 or even 30 calculators are grouped together. • Functions: Choose a model with only the specific functions you need. Unnecessary functions clutter the keyboard and may impede a student's understanding of the concepts. |
In 1995 Texas Instruments provided a total of 6 different calculators (not counting the Graphing Calculators TI-80, TI-81, TI-82 and TI-85) to meet the above demands. View a comparison table here.
Dismantling this TI-7 MathMate manufactured in December 1991 in Lubbock, Texas reveals a very innovative and efficient construction centered around a Toshiba T6M13S single-chip calculator circuit.
In 2004 the internal construction of the TI-7 MathMate was revised and a battery supported 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, July 4, 2002. No reprints without written permission.