Post on 16-Apr-2017
Explanation of Networks- What is a
network?
- Why do schools build networks?
- Types of networks
- Common Terms
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What is a Network?
Connects users to devices
Consists of: Clients Infrastructure Networking
Electronics
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Clients, Infrastructure, Networking Electronics
Clients These are the users
Infrastructure The makeup Wires, fiber optics,…
Networking Electronics Devices that move Stores data
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Why do Schools build Networks?
Efficient access to informationOpportunities for student collaborative
learningInterdisciplinary curriculumProfessional growth through online coursesA more active and connected communityShared accessEasier schedulingShared devices
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Types of Networks
LAN Local Area Network
WAN Wide Area Network
WLAN Wireless Local Area Network
MAN Metropolitan Area Network
CAN Campus Area Network…..
SAN Storage Area Network….
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Most Common Networks
LAN All clients share a common infrastructure Typically in the same building
WAN Links two or more LANs Separated by distance
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Network Common Terms
Protocol
Platform
Media type
Topologies
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Protocol
Standard for how devices communicate
Physical Protocols Voltage levels on wires
Network Protocols Retransmit of data
Protocol Suite Group of protocols working together
Platform
Combination of a hardware & an operating family
Examples Macintosh OS Windows UNIX
Many school networks are mutiplatform
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Media Type
Pathway for the data
Examples Fiber optics Copper wire Radio waves
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Topology
Shape of a network
The most common shape is a star with all the clients stations connected to a central point
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Star Ring Bus
References
Mitchell, B. (n.d.). Introduction to Network Types. About.com. Retrieved from http://compnetworking.about.com/od/basicnetworkingconcepts/a/network_types.htm
Northwest Educational Technology Consortium (2005). A Guide to Networking for K-12 Schools. Retrieved from http://www.netc.org/network_guide/
Wise Geek (2003-2013). Network Devices. Retrieved from http://www.wisegeek.com/what-are-network-devices.htm