Network Devices

Network Devices

1. modem

   • converts digital to analog signal
   • ADSL modems use an existing phone line
   • 100 mb per second using fibre optic

2. Hub

   • used to connect a number of devices togeathe to form a LAN
   • takes data packets and broadcasts it to every computer in the network
   • not secure or efficent methord of data distribution
   • Switches
     • only sends it where its ment to go

3. bridge

   • used to conect one LAN to another, that uses the same protocol

4. router

   • broadband router should sit behinged a firewall
   • enables data packets to be routed between diffrent networks eg join a LAN to a WAN