Networks

Networks

1. Two or more electrical device connectedto share data

   • LAN (local Area Network)
     • Small and private
     • Can be wireless (WLAN)
       • WiFi (50 m range)
       • Harder to secure (hackers can get in)
       • More convinient
   • WAN(Wide Area Network)
     • Lots of LANs
       • Optic fibre
       • Radio signals
     • Global
   • Bluetooth (Personal Area Network)
     • Instead of USB
     • At home