Dot-decimal notation

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An illustration of an IP address (version 4), in both dot-decimal notation and binary.
An illustration of an IP address (version 4), in both dot-decimal notation and binary.

In computer networking, dot-decimal notation (also known as dotted quad notation [1]) is a method of writing down octet strings using base-10 (decimal) rather than hexadecimal numbers. Adding dots allows for easy separation of the individual octet values. For example, the hexadecimal octet string FF-00-00-00 can be expressed as 255.0.0.0 in dotted-decimal notation.

IPv4 addresses are almost universally presented in dot-decimal notation.

A similar notation is widely used in typography to number sections of documents (see ISO 2145).

[edit] References

  1. ^ What is dot address? - a definition from Whatis.com - see also: dotted quad


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