Networks

Networks - Networks Networks Computer Networks e Facilitate...

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Networks Networks
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Computer Networks e Facilitate communication between a source & destination a Node = any device connected to the network a Transmission medium = physical connection Wire, fiber optic, air (wireless) a NIC (Network Interface Card) needed to connect a Transmission Protocol = rules that govern network access a Packets = all messages broken up into packets
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Network Classifications & Their Wireless Counterparts e PAN (Personal Area Network): interconnection of personal digital devices All are wireless: Bluetooth or infrared a LAN (Local Area Network): usually connects computers in a single building WLAN: WiFi (802.11) a MAN (Metropolitan Area Network): public high- speed network with range of about 50 miles WiMAX: 802.16 a WAN (Wide Area Network): consists of several smaller networks WWAN: most cell phone technologies
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Clients, Servers, and Peers e Network devices can function as clients or as servers Application server File server Print server a Networks that include one or more servers can operate in client/server mode
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Networks - Networks Networks Computer Networks e Facilitate...

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