local area network

local area network

1. routers

   • hubs
     • switches
       • bridges

2. a router can often incorporate hubs switches and wireless access within the same hardware

   • in a star network every device has its own cable that connects to a switch or a hub
     • there are two types of routers (wired and wirless)
       • disadvantages
         • • high setup cost
             • privacy violations
               • data security threat
                 • LAN maintenance job
       • advantages
         • sofware applications sharing
           • easy and cheap communication
             • centralized data
               • data security
                 • internet sharing

3. lan is most popular for your pc,each individual computer has its own LAN.

4. A LAN encompasses computers and peripherals connected to a server

5. devices connected to a LAN are able to accsess data from any machine thats connected to a network

6. wapan

   • a wapan is a personal area network-a network for interconecting devices centerd around an individual persons workspace -in witch the connections are wireless
     • a WPAN is a low powerd pan carried over a short distence wireless network technology such as irDA wireless USB bluetooth and zigbee
     • advantages
       • very efficient
         • has a maximum range of about thirty meters
           • WAN
             • WAN is a geographically distributed private telecommunications network that interconnects multiple local area networks

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