In the computer, all data are represented as binary digits (bits), and eight binary digits make up one byte. For example, the upper case letter A is 0101001. Numbers however can take several forms.

In the first column of this series, I introduced the concepts underlying BCD (binary-coded-decimal) representations. In my second column I discussed how we go about adding and subtracting unsigned BCD ...

There are different ways to represent a number. The four commonly associated with modern computers and digital electronics are the decimal, binary, octal, and hexadecimal. This is the most commonly ...