Fiber-optic lines have revolutionized long-distance phone calls, cable TV and the Internet. It enables the long-distance transmission of data in light signals. Find out all about fiber optics.
Most of the world still uses a standard modem to connect to the Internet. Learn how they are able to transmit so much data over a normal voice connection!
computer.howstuffworks.com/modem.htm
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Manufactures a full line of networking equipment for the Internet. Site provides product and corporate information, employment, locations of corporate headquarters in San Jose and of other sites worldwide.
www.cisco.com/univercd/cc/td/doc/product/mels/cm1500/dwd<br/>m/dwdm_fns.htm
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