Details

Title: Office Automation

Description: Questions 45 - 54

Total Flash Cards: 10

Created: 10/14/2009 09:04:51

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Additional Communication Flashcards

Cards in this set:

Term

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  1. Client/Server Architecture

Definition

Servers are multiple computing platforms as dedicated to preforming specialized functions.

 

Clients are the individual users that request information from the servers.
Term

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  1. Dedicated line

 Definition
A connection between two points that is present whether data is being sent or not.
Term

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  1. Modem

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.
Term

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  1. Multiplexer

Definition
Combines multiple data signals into one signal to allow more data to be transmitted over a communications medium.
Term

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  1. Synchronous

 

 Definition

The message or signal is recieved by the user instantaneously after being sent.

 

ie. Telephone, IM
Term

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  1. Asynchronous

Definition

The user does not recieves the message or signal instantaneously.

 

ie. Post office, email.
Term

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  1. Communications Media

 Definition

The various ways data can be transmitted or received.

 

ie. Fiber optics, copper trunks, twisted-pair, wireless
Term

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  1. Fiber-Optic Cable

 

 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.
Term

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Coaxial Cable

 Definition

An analog communications medium that utilizes a single copper wire to send information.

 

ie. Television
Term

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  1. Twisted-Pair Cable

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.