# binary number system

## Definition

### Electronics

- A
__numbering system__ whose base is 2, meaning that there are two digits, namely 0 and 1. All values expressed are composed of combinations of zeroes and ones. For instance, the numeral 85 in the decimal, or base 10, __system__ is expressed as 1010101 in the binary system. Since the only two possible values are 0 and 1, this __number__ system lends itself to unequivocally distinguishing between two states. For instance, on or off, yes or no, true or false, current or no current, high voltage or __low voltage__, and so on. All information, numbers or otherwise, entered into a digital computer is converted into these digits, as all processing is based on this system. Also known as binary (2).

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