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Basics of Networking

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Basics of Networking. By: Amy Simon. Does this sound familiar???. What happened to my student’s project? Why can’t I access my lesson in the computer lab? I know I saved it… somewhere… WHERE DID IT GO?????. Overview. Parts of the network Internet Modem Router Firewall Switch - PowerPoint PPT Presentation
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Basics of Networking By: Amy Simon
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Basics of Networking

Basics of NetworkingBy: Amy SimonWhat happened to my students project?Why cant I access my lesson in the computer lab?I know I saved it somewhereWHERE DID IT GO?????Does this sound familiar???

Parts of the networkInternetModemRouterFirewallSwitchWireless Access PointDevices, Servers, and ClientsWAN/LANOverview

The internet cloud is a set of routers and other highly sophisticated communication devices managed by Internet Service Providers (ISPs).Refers to anything associated with the internet.Email serverGmailYahooOutlookWebsitesReading A-ZEnvisionEveryday MathSometimes referred to as the cloudHighly technical, high speed, very sophisticatedInternet, or Internet Cloud

The modem connects devices to the internet.Translator between your network and the internet cloud. Several types of modems:T1 best internet connection, but not very fast and very expensive; great option where DSL or Cable modems arent available.DSL (Digital Subscriber Line) provides solid connection through telephone company, no shared bandwidth so connection doesnt slow down with high volume.Cable few problems using cable, but main bandwidth is shared, so when there is high usage volume the service will be slow.Satellite great option for remote areas, but very slow as it connects with satellites in space. Uploading is nearly impossible with this type of connection.4G connects wireless devices to cell phone towers.

Modem

A protective layerTries to protect from hackers.Different types of firewalls:Software firewalls on a server or deviceSecurity device built into modem or routerSettings on this firewall will affect internet services for the entire network!Firewall

Allows devices to get to the modem and internetAllows you to separate networks so there can be different networks within the same building.It is common for routers now to have the modem, router, and firewall all built into one piece of hardware.Some routers even have a switch and wireless access point built in for small networks, too.Router

Connects all devices on the network togetherHas ports for each computer, which connects each computer to the router.Switches in large networks can get very complex, much more so than the one pictured below, to allow for many computers to be connected to the network.Switch

portsOne cable from each wireless access point is connected to the switch.Allows wireless devices (printers, laptops, phones, iPads, etc.) to connect to the network and internet.Wireless Access Points

Device: anything connected to the networkServer: a networked device that provides a service to other devices on the network.File server: One central computer that stores all of the files that everyone can access over the network.Print server: Allows computers to print through it.Client: a device in the network that accesses a service from the server.Devices, Servers, and Clients

serverprintercomputerDevices/ClientsLAN: Local Area NetworkA network within a building or small areaEach school building can have its own LANA district can have its own LANWAN: Wide Area NetworkA network that covers more than one LAN to share applications or data.A network between school districtsThe internet is the largest WANLAN/WANHow Does It All Fit Together?switch

wirelessaccesspoint print server

file serverprinter

computers

switch

router

firewall

modem

Typically all one piece of hardware.

NETC: A Guide to Networking for K-12. (n.d.). Northwest Educational Technology Consortium. Retrieved September 15, 2013, from http://www.netc.org/network_guide/Networking - FREE Computer Training. (n.d.). FREE Computer Training - Computer Repair Classes - Laptop Repair Instruction - Data Recovery Lessons - Web Design Seminars - Computer Security Counseling. Retrieved September 15, 2013, from http://www.elithecomputerguy.com/classes/networking/Pictures from: http://it.ballaratsc.vic.edu.au/IT2/Theory%20topic%20notes/TheoryTopicG-Computer%20network%20designs.htmBibliography


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