Hardware Edit

Cables are

a collection of wires or optical fibers bound together and used as a conduit for components and devices to communi­cate or transfer data.[1]

Telecommunications Edit

While the coaxial or cable network was originally engineered and designed for the transmission of video to residential subscribers, there is a large available spectrum in traditional coaxial and hybrid fiber coaxial cable to support broadband requirements. In addition, newer compression technologies such as MPEG-4 have made it possible to fit a 20 Mbps video stream into 8 or 9 Mbps. Changes and upgrades to the underlying cable protocol, DOCSIS, which can increase speeds up to 150 Mbps and beyond, have provided additional bandwidth. Providers are transitioning to a protocol that will increase their ability to provide more symmetrical upstream and downstream speeds, a key component as user-generated content increases.

Because cable networks are shared by users, there are security concerns and fears that hackers might be able to eavesdrop on a neighbor’s Internet connection.

References Edit

  1. U.S. Department of Justice, National Institute of Justice, Electronic Crime Scene Investigation: A Guide for First Responders 50 (2d ed. Apr. 2008) (full-text).
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