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Network media 
Summary
Network media refers to the communication channels used to interconnect nodes on a computer network. Typical examples of network media include copper coaxial cable, copper twisted pair cables and fiber-optic cables used in wired networks, and radio waves used in wireless data communications networks.
See also edit
Further reading edit
- "Network Media". Network+ Study Guide & Practice Exams. 2005. pp. 67–121. doi:10.1016/B978-193183642-5/50006-0. ISBN 978-1-931836-42-5.