wasee Posted August 12, 2007 Posted August 12, 2007 How do calculators (and computers) add ,subtract etc.? I know it is done through code but how? I shall be grateful if someone helps me understand these very basic ideas.
Klaynos Posted August 12, 2007 Posted August 12, 2007 The numbers are converted into a binary number, these can then be mathematically manipulated using logic gates... Most of the time computers only have adding circuits, and use clever number systems so adding 2 numbers of a set form, can do the same as subtracting them. Have a look in wikipedia at logic gates, binary, and two's complement.
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