Computer networking

Published on 12/06/2015 by admin

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Last modified 12/06/2015

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9 Computer networking

Terminology

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Asynchronous Transfer Mode (ATM) A fast and expensive method of setting up a computer network; tends to be used to provide the backbone to a system
Backbone A physical connection between hubs that carries all data back to the server
Bandwidth The amount of information in bits per second (bps), kilobits per second (kbps), or megabits per second (Mbps) that can be sent via a communication channel or a network connection in a set period of time, i.e. the speed of the system
Bus
Collision When two or more computers try to send data at the same time down the same network
Deterministic The method of calculating how long it will take data to travel round a network and how quickly the system can be accessed
Ethernet A method of setting up a computer network developed by Xerox, using cabling to connect the parts of the system together
Global Area Network (GAN) Worldwide connecting systems, e.g.

Hub
IP Address
ISDN Connection A digital telephone line allowing computer connections
Local Area Network (LAN) A method of linking computers, printers, etc. within a building to enable the sharing of data between computers
Metropolitan Area Network (MAN) Linking of local area networks over a local district
Modem Device connecting computers to the telephone system Consists of:

Network A method of linking computers, printers, etc. to enable the sharing of data between them
Network Interface Cards (NICs)
Node Equipment that communicates in a network, e.g.

Router
Segment Section of a network where several nodes are linked together