"25 avr. 2007 ... D'autres dispositifs incluent la logique de machine à calculer, les contacts coulissants et les sélecteurs de point décimale, ..."
http://www.testfreaks.fr/calculatrices/canon-p23-dts/

"Adding machine logice" : c'est la terminologie utilisée en français par Canon pour ses calculatrices bulle d'encre

"Canon MP37-MG - Calculatrices - Canon France
Cette calculatrice imprimante de bureau 12 chiffres au design ergonomique ... Adding Machine Logic, Oui. Cover, Oui (couvercle de tête d'imprimante pour le ..."
http://www.canon.fr/For_Home/Product.../Calculators/.../inde...

explication :

"Adding Machine Logic

The HP-10 was modeled after a standard desktop "10 Key" adding machine. Adding machines use their own style of logic. To add numbers on an adding machine, the user clears the machine (either by an explicit clear command or a previous total command,) enters the first number, presses the + key which adds it to zero, enters the second number and presses + again to add it to the previous result. For adding and subtracting, an adding machine is much like RPN, except that the first number is added to zero rather than Entered.

For multiplications, the user enters the first number, presses the multiplication key, enters the second number and presses the = key. (The + key could then be pressed to add the product to the running sum.) So for multiplications and divisions, an adding machine looks algebraic.

The HP-10, like some other adding machines, combined + and = onto one large key. It was always clear from the context whether the += key meant + or =. For example, if the user pressed Clear 30 + 4 * 5 += +=, then the first += was interpreted as =, and the second was a +, (ie 30 + (4*5)) yielding a total of 50. "
http://www.hpmuseum.org/hp10.htm

operating system = système d'exploitation, comme DOS, UNIX, LINUX, Palm-OS etc