- One-to-one (communication)
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One-to-one in communication is the act of an individual communicating with another. In Internet terms, this can be done by e-mail but the most typical one-to-one communication in the Internet is instant messaging as it does not consider many-to-many communication such as a chat room as an essential part of its scope (however, this may be disputed as instant messaging includes announcing presence information, which may be considered a part of a many-to-many communication system).
See also
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