network

network

1. hardware

   • ethernet cable
     • connects a device to the router
   • router
     • connects to the phone line so all devices connected to it can connect to the internet
   • switch
     • used to create large lans
   • interface card
     • any device that connects to a wan or lan needs an interface caed

2. NETWORK

   • wan (wide area network)
     • networks which are connected together over a large geographical area
   • lan (local area network)
     • devices connected over a small geographical area

3. SECURITY

   • Password
   • Encrypted
   • Firewall
     • controls inflow and outflow of data

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