01871cgm a2200301 i 4500 2550241183 TxAuBib 20240906120000.0 r 140802s2014||||||||||||||||||||||||eng|u 1101833 Kanopy (OCoLC)956894595 UtOrBLW eng rda UtOrBLW TxAuBib rda Electronics-- fiber-optic communications [Kanopy]. [San Francisco, California, USA : Kanopy Streaming, 2014. 1 online resource (1 video file, approximately 15 min.) : digital, .flv file, sound. tdi rdacontent c rdamedia cr rdacarrier Title from title frames. Originally produced by TMW Media in 2005. Communications technology is everywhere. We send and receive information through televisions, internet, email, radio, text message and social media. This program goes into depth about how electronic communication has evolved over time. Whether using an old rotary phone or some new technology, there are basic principles behind each that many of us are unfamiliar with. Land line telephones send sound waves that are converted into electrical impulses that work with a series of switches and routing devices that open an electrical pathway to whomever you're calling. More commonly, cell phones operate by means of a modulated electromagnetic wave basically a radio. These signals connect to an electronic communications network. Metropolitan areas are divided into small networks where antennas send and receive signals depending on the user's location. Mode of access: World Wide Web. Optical fiber communication. Short films. Kanopy (Firm). https://USERNAME.kanopy.com/node/101834 https://www.kanopy.com/node/101834/external-image