Q. How to convert Binary to Decimal number system?

It is extremely easy to convert from a binary number to a decimal number. As like the decimal system, we multiply each digit by its weighted position, and add each of the weighted values together. For illustration, the binary value 1100 1010 represents:

1*2^7 + 1*2^6 + 0*2^5 + 0*2^4 + 1*2^3 + 0*2^2 + 1*2^1 + 0*2^0 =

1 * 128 + 1 * 64 + 0 * 32 + 0 * 16 + 1 * 8 + 0 * 4 + 1 * 2 + 0 * 1 =

128 + 64 + 0 + 0 + 8 + 0 + 2 + 0 =202