Term
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Client/Server Architecture
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Definition
Servers are multiple computing platforms as dedicated to preforming specialized functions.
Clients are the individual users that request information from the servers. |
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Term
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Dedicated line
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Definition
| A connection between two points that is present whether data is being sent or not. |
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Term
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Modem
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Definition
A device that translates one method of communication to another through a process called modulation.
ie. A cable modem translated the information coming over the coax network into an ethernent signal. |
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Term
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Multiplexer
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Definition
| Combines multiple data signals into one signal to allow more data to be transmitted over a communications medium. |
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Term
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Synchronous
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Definition
The message or signal is recieved by the user instantaneously after being sent.
ie. Telephone, IM |
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Term
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Asynchronous
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Definition
The user does not recieves the message or signal instantaneously.
ie. Post office, email. |
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Term
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Communications Media
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Definition
The various ways data can be transmitted or received.
ie. Fiber optics, copper trunks, twisted-pair, wireless |
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Term
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Fiber-Optic Cable
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Definition
| A digital communications medium that uses hair-thin glass tubes to transmit bursts of light. This method can transmit the most information the quickest. |
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Term
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Coaxial Cable
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Definition
An analog communications medium that utilizes a single copper wire to send information.
ie. Television |
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Term
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Twisted-Pair Cable
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Definition
| A digital communications medium that uses eight small copper wires twisted into 4 pairs. The twisting in the wires creates an electromagnetic field that protects the information from interferance. |
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