Although I doubt most of us will need to know how to convert bits to bytes and ascii to bits and bin to hex or whatever on the day-to-day, its kind of neat just to understand why its there, because suddenly you see its use in a lot of things- especially if you’re online. Have you ever tried to find a color for a web page? Hex. Wondered just what the numbers in your IP address represents? 32 bits encoded as base-256. If you’ve ever had to mess around with a router at home, you have heard of your MAC Address, 48-bits represented in hex.