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22 Cards in this Set
- Front
- Back
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De Facto
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In reality or fact; actually.
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Print server
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provides access to shared printer
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Cleints
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need access to resources such as files, appications, printers
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Star Topolgy
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A hub or repeater is in the center of the star. Circuitry in a hub can reproduce a bus, ring, or even mesh topology.
Most commonly used. |
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Peer-to-Peer Network
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computers talk directly to each other; used mostly for home use because it is cheap; but can have security risks
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Latency
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n 1: (computer science) the time it takes for a specific block of data on a data track to rotate around to the read/write head [syn: rotational latency] 2: the time that elapses between a stimulus and the response to it [syn: reaction time, response time, latent period] 3: the state of being not yet evident or active
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ANSI
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American National Standards Institute
US's voting member of the ISO and ITU-T and works with them to make US national standards |
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NOS
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Network Operating System -
An operating system which includes software to communicate with other computers via a network. This allows resources such as files, application programs, and printers to be shared between computers. |
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Distributed Processing
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Opposite of centralized; user has control of data and apps; IS has little control;
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Novel Netware
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Killer app for LANs
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MAN
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Metropolitan Area Network
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jitter
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Random variation in the timing of a signal, especially a
clock. |
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Active Network
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Data transmitted over the network is passed from node-to-node and each node is responsible for transmitting the data to the next node on the ring.
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Servers
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provide resources to clients
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Centralized Processing
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users access through a "dumb" terminal; apps executed on a centrlized computer (mainframe); uses timesharing;
IS staff has a lof control; user has little or no control over data and apps |
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CAN
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Campus area network
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Communication Server
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Provides access to shared communication devices such as modems or fax machines.
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Application server
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runs server based applications such as Web server. CPU predormance is usually critical.
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Mesh Topology
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Each computer is connected to every other computer.
Most releible and most expensive. Network can have a combination of mesh and star topology. |
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File Server
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provides access to sever's file system allowing centralized storage of data and applications
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Bus Topolgy
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Single linear tranmission medium (bus). Nodes tap into the bus with a drop cable.
Must have terminator on each end so the bus. Broadcast oriented - data sent by one node is receieved by all nodes. Must be planned carefully and are hard to trouble shoot |
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Ring Topoly
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each node is connected to 2 other nodes in a closed loop. Almost always "active".
Tings also have to be planned. A cable failure can bring down a network. |
