IP Addresses
The most common type of IP address consists of a 32-bit value. Here’s an example:
Whoa! IP addresses are just strings of 32 binary digits? Yes, they are, but to make IP addresses easier for humans to use, the 32-bit binary value is broken down into four groups of eight, separated by periods, or dots, like this:
Each of these 8-bit values—called an octet—is, in turn, converted into a decimal number between 0 and 255.
If you took every possible combination of eight binary values and placed them in a spreadsheet, it would look something like the list in the left column. The right column shows the same list with a decimal value assigned to each.
Converted, ...

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