networks, topology, & architecture mrs. wilson dreamweaver for college & business
TRANSCRIPT
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Networks, Topology, & ArchitectureNetworks, Topology, & Architecture
Mrs. WilsonDreamweaver for College & Business
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What is a Network?
Combination of hardware and software that allows computers to exchange data and share software and devices.
Used by schools, businesses, and home users as well.
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Why a Network?
Allows sharing Reduces costs (i.e., printers) Offers security Simplifies file management Provides e-mail
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Types of Networks
Networks are classified by their size, architecture, and topology TopologyTopology: The physical or logical
arrangement of nodes on a network
LAN—Local Area NetworkWAN—Wide Area Network
MAN—Metropolitan Area NetworkHAN—Home Area Network
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Cross-Platform Connectivity An issue involved with using so
many different types of PCs
Ability of one type of PC to link and share data with another
For example: MACs and PCs or PCs and Laptops
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Network Interface Card (NIC)
A circuit that goes into a computer allowing you to access a network!
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Network Architecture
Includes the types of computers on the network and how the resources are handled.
Two common models:
Peer-to-Peer: Each computer is equal
Client-Server: Group of computers, called clients, connected to a server
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Topology and Nodes
Topology Refers to the arrangement of the
nodes on a network
Nodes A location on the network with a
device capable of processing information, such as a computer or a printer
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Three Common Topologies1. Bus Topology
Single Central Cable, called the bus or backbone to attach each node directly
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Three Common Topologies2. Star Topology
Each node is attached to a hub, which is a device that joins communication lines at a central location on the network
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Three Common Topologies3. Ring Topology
Each node is connected to form a closed loop. This type covers greater distance.
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Transmission Media, Ethernet, and Wi-Fi
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Netiquette
Rules for being a Good NetizenRemember to be a good citizen of cyberspace.
Remember the human Adhere to the same standards of behavior on-line
that you follow in real life. Know where you are in cyberspace. Respect other people's time and bandwidth. Make yourself look good on-line. Share expert knowledge. Help keep flames under control. Respect other people's privacy. Don't abuse your power.
Be forgiving of other people's mistakes.