“In mathematics and digital electronics, a binary number is a number expressed in the binary numeral system or base-2 numeral system which represents numeric values using two different symbols: typically 0 (zero)and 1 (one).”
Binary describes a number scheme in which there are only two possible values. 0, and 1. It also refers to digital encoding, and decoding, in which there are two possible states.
Binary numbers and arithmetic let you represent any amount you want using just 1 and 0. Here are a few examples of how this works:
1 in Decimal is 0001 in Binary
9 in Decimal is 1001 in Binary
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