Term
| network interface card (NIC) |
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Definition
| each computer on the network has one of these |
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Term
| network operating system (NOS) |
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Definition
| routes and manages communications on the network and coordinates network resrouces |
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Term
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Definition
| very simple devices that connect network components, sending a packet of data to all other connected devices |
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Term
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Definition
| more intelligence than a hub and can filter and forward data to a specified destination |
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Term
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Definition
| special communications processor used to route packets of data through different networks |
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Term
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Definition
| consists of strands of copper wire twisted in pairs and is an older type of transmission medium |
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Term
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Definition
| part of a network that handles the major traffic |
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Term
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Definition
| can transmit all types of traffic-voice,data,video over fiber cables |
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Term
| dense wavelength division multiplexing |
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Definition
| enables a single communications channel to carry simultaneously data transmissions from multiple sources |
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Term
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Definition
| the number of cycles per second that can be sent through that medium |
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Term
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Definition
| major LAN topologies:star,bus, and ring |
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Term
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Definition
| all network components connect to a single hub |
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Term
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Definition
| most common Ethernet topology |
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Term
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Definition
| used primarily in older LANS,closed loop goes in one way |
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Term
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Definition
| linking of separate networks each of which retains its own identity into an interconnected network |
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Term
| internet service provider (ISP) |
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Definition
| commercial organization with a permanent connection to the internet that sells a temporary connections to retail subscribers |
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Term
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Definition
| device such as an internet-enabled cell phone or a tv internet receiver |
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Term
| FTP file transfer protocol |
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Definition
| e-mail, chatting and instant messaging |
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Term
| hypertext transfer protocol HTTP |
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Definition
| communications standard used to ransfer pages on the web |
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Term
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Definition
| pull content from the web site that can be viewed later on the computer |
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Term
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Definition
| private intranets that can be viewed by authorized outsiders |
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Term
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Definition
| enables discussions to be conducted through predefined groups but uses e-mail mailing list servers instead of bulletin boards for communications |
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Term
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Definition
| provides capabilities for supporting enterprise-wide communication and collaborative work |
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Term
| virtual private network VPN |
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Definition
| secure, private network that has been configured within a public network to take advantage of the economies of scale and management facilities of large networks such as the internet |
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