# සාකච්ඡාව:පොදු පරිගණක

Binary is a numeric system which uses two numerals to represent all real numbers.

```While the most common counting system, the decimal system, uses ten numerals, binary uses only 0 and 1.
```

Each digit in a binary number system therefore represents a power of two. The first digit on the right represents the 0th power, the second represents the 1st power,

```the third represents the 2nd power, and so on. So the number 1 in the decimal system is represented also
as 1 in the binary system. The number 23, by contrast, is represented as 10111 (16+0+4+2+1).
```

The decimal system makes perfect sense for human beings to use. We have ten fingers and ten toes,

```so when early humans began counting things they turned to these readily available markers.
```

Later, when systems of counting became codified, it was natural to convert the already used decimal system to a representational system. Binary is also a fairly natural system, however, since many things

```either "are" or "are not." Many spiritualist traditions, such as the Pythagoreans and some Indian mystics,
```

therefore made use of this system, beginning in the 6th century BC.uter]]

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