Why Are People Saying Numbers On Their Status

BINARY ARITHMETIC BINARY NUMBERS

To convert binary numbers to decimal and vice versa, on this page, I found a simple explanation.
BINARY-DECIMAL ...
first take the binary numbers are counted from right to left, starting from scratch, and even the number that is complete, then each 0 or 1, you will be raising the power of 2 depending on the position you have the number on the figure.

explanations ...
explanation, 2

DECIMAL-BINARY ...
conversely, to convert to ordinary decimal numbers, it is taking the initial number, taking the modulo 2 of that number, saving the result (must be 0 or 1), then take the result of the division, and is made modulo 2 to that result, we take the result modulo (0.1), and so on until the result of the division is 0.

/ / also found a page that has the program conversions already done for, also I leave the league to discuss the configuration of the program.