Editing Two-way communication (section)

== Computer networks ==
Computer networks are used to have two-way communication by having computers exchange data.  Ways that this is possible is wired interconnects and wireless interconnects.  Types of wired interconnects are Ethernets and fiber optic cables. Ethernets connect local devices through Ethernet cables. Fiber runs underground for long distances and is the main source of Internet in most homes and businesses. Types of wireless interconnects include Wi-Fi and Bluetooth.  The problem with these networks is that they don't have unlimited connection span. To expand the reach there are wide area interconnects such as satellite and cellular networks.  Also, there are long-distance interconnects which need ''backhaul'' to move the data back and forth and ''last mile'' to connect the provider to the network.<ref>{{cite web|last=Mitchell|first=Bradley|title=How Computer Networks Work- Introduction to Interconnects|url=http://compnetworking.about.com/od/basicnetworkingconcepts/a/how-computer-networks-work-introduction-to-interconnects.htm|publisher=About.com|access-date=19 March 2014}}</ref>