DATAMATH CALCULATOR MUSEUM 
Texas Instruments Les Maths Magiques
Date of introduction:  1982  Display technology:  
New price:  Display size:  n.a  
Size:  5.3" x 8.5" x 1.5"  
Weight:  9 ounces  Serial No:  
Batteries:  9V  Date of manufacture:  wk 46 year 1982 
ACAdapter:  Origin of manufacture:  Italy  
Precision:  Integrated circuits:  CD2801A (TMC0281), CP3447, CD62173  
Memories:  
Program steps:  Courtesy of:  Joerg Woerner 
At first glance this rare Les Maths Magiques sold in France seems to be a variation of the Speak & Spell Compact and its sibbling Speak & Write.
But the keyboards of these two products type the characters "A"..."Z" while the Les Maths Magiques reads the numbers "0"..."9" like the original Speak & Math introduced already in 1980.
If you compare the keyboard with the later Maths marvel and its sibblings le Calcul magique, Dotto Contaparla and MatheFix you solve the mystery:
Product line  Original product  Compact edition 
SPELL  Speak & Spell  Speak & Spell Compact 
MATH  Speak & Math  Les Maths Magiques 
Actually we discovered the the unknown "Speak
& Math Compact" sandwiched between the original Speak &
Math and the le Calcul magique introduced in
1986 and using much simpler technology.
Dismantling
the Les Maths Magiques reveals indeed the technology of the Speak &
Math / Speak & Spell products.

If you have additions to the above article please email: joerg@datamath.org.
© Joerg Woerner, July 12, 2005. No reprints without written permission.