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Because any system with base n (in this case, 2) can only use the digits up to n-1.


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Q: Why does 0 and 1 is used as a binary numbers instead of 2 3 4 5 6 7 8 9?
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Related questions

What are the numbers in binary?

The only numbers used in binary are 0 and 1


What numbers are used in binary?

Binary uses only the digits 0 and 1.


How are real numbers expressed in binary?

The same as real numbers are expressed in decimal, except only the digits 0 and 1 are used (instead of 0 to 9) and the separator between the integer and fraction part is called the binary point (instead of the decimal point). The sign if needed is the same as in decimal.


What integers are used to represent binary numbers?

0 and 1.


Which number would you find in a binary code?

The numbers used in the binary number system are 1 and 0


How do you write 0 in binary numbers?

0.


How do you express the number 2 in binary?

Binary code means that only whole integers up to 2 (0=<x<2), excluding two can be used. Binary basically makes all even numbers 0 (or false) and odd numbers 1 (or true) The number "2" in binary is "0"


What digits are representative of all binary numbers?

There are only two digits used in binary: 0 (zero) and 1 (one).


What is difference between Binary numbers and Decimal Numbers?

Binary can only be 1 & 0. Decimal numbers have a dot in them. Binary numbers use only 2 symbols (0 and 1) to represent different numbers, while decimal numbers use 10 symbols (0 to 9) to represent different numbers. check the below link for more.


What 2 numbers are used in the binary code for computers?

Not 2 numbers - 2 digits. The digits 0 and 1.


Are binary numbers used mostly in the science of computers?

No. All computers only understand binary, which is 0 as "off" and 1 as "on."


What numbers is binary made up of?

Binary has all the numbers. Each binary digit can have the value 0 or 1 only.