Q.Convert the binary number $1011_2$ to its decimal equivalent.

Decimal (base 10) uses ten digit symbols ($0$-$9$) with place values $10^0,10^1,10^2,\ldots$. Binary (base 2) uses only two symbols, called bits ($0,1$), with place values $2^0,2^1,2^2,\ldots$; a binary number's decimal value is the sum of each $1$-bit's place value (e.g. $1011_2=8+0+2+1=11_{10}$), and a decimal number is converted to binary by repeated division by $2$, reading the remainders in reverse order. Binary is used in digital electronics because it maps d …