how calculators work?
In: Technology
Numbers are converted to binary. In binary, 0 is 0, and 1 is 1. However, 10 is 2 and 11 is three. 100-4,101-5,110-6,111-7, and so on. To add two numbers in binary, you compare their digits. 0+0=0, 1+0=1, 1+1=10. You can do similar for subtraction. These comparisons are made with logic gates, which are made of transistors. Now add a ton of these together and you’ve got addition. Repeatedly adding gives you multiplication, and repeatedly subtracting gives you division.
Calculators are just mini computers. All computers can do math because they have circuitry called the arithmetic logic unit which allows them to do math.
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