Binary Numbers

The binary number has a radix of 2. As r = 2, only two digits are needed, and these are 0 and 1. Like the decimal system, binary is a positional system, except that each bit position corresponds to a power of 2 instead of a power of 10. In digital systems, the binary number system and other number systems closely related to it are used almost exclusively. Hence, digital systems often provide conversion between decimal and binary numbers. The decimal value of a binary number can be formed by multiplying each power of 2 by either 1 or 0 followed by adding the values together.

Example : The decimal equivalent of the binary number 101010.