Networks

Networks

1. LAN (Local Area Network)

   • Devices that are connected over a small geographical area.
   • Hardware needed
     • Router
     • Ethernet cable
     • Server
     • WiFi extender
     • Network interface card
   • ways to connect to a LAN
     • WiFi
       • wireless connection - slower than ethernet
       • Advantages
         • Portable
       • Disadvantages
         • Slower data transfer
         • Limited range
     • Ethernet
       • Advantages
         • Faster data transfer speed
         • Has a range of 100m
       • Disadvantages
         • Cables are more expensive
       • wired connection - faster then WiFi
   • Advantages
     • easy to communicate

2. WAN (Wide Area Network)

   • Networks are connected over a large goegraphical area
   • Hardware needed
     • Satilite link
     • Telephone line
     • Modem
     • Router (with modem built in)
   • ways to connect to a WAN
     • Mobile data (GPRS)
       • Advantages
         • can be used on the move
       • Disadvatages
         • can be expensive
         • needs a SIM card
         • limited/slow conection speed