Network

Network

1. LAN (Local Area Network)

   • Devices that are connected over a small geographical area.
   • Hardware needed
     • Wifi extended
     • Router
     • Ethernet cable
     • Network interface card
     • Server
   • Advantages
     • Easy to communicate
   • Ways to connect to a LAN
     • Wifi
     • Internet

2. Ethernet

   • Advantages
     • Faster data transfer speed compared to Wifi
     • Has a range of 100 metres compared to wifi which has a limited range
   • Disadvantages
     • Cables are more expensive compared to wifi

3. Wifi

   • Advantages
     • Good for connecting portable devices to LAN
   • Disadvantages
     • Slower data transfer speed compared to ethernet.
     • Limited range (unless you use a wifi extender)
     • Can be hacked by unauthorised users

4. WAN (Wide Area Network)

   • A collection of networks are connected over a large geographical area (eg. the internet )
   • Advantages
     • Portable
   • Hardware needed to connect to WAN
     • A modem - nowadays these are built into a router
   • Ways to connect to a WAN
     • Telephone connection
     • Mobile data
     • Cable / satellite

5. Ways to connect to LAN