networks

networks

1. LAN(local area network)

   • devises that are connected over a small geographical area
   • hardware
     • server
     • wifi extender
     • router
     • ethernet cable
     • network interface card
   • ways to connect to a LAN
     • Ethernet
       • wired connection
       • disadvantage
         • ethernet is more expensive because you need to pay for the cable
       • advantages
         • faster data transfer speed compared to wifi
         • has a range of 100 meters
     • Wireless connection
       • advantages
         • good for connecting portable devises to a LAN
       • disadvantages
         • slower data transfer speed compared to ethernet
         • limited range (unless you use a wifi extender)
         • can be hacked by unauthorised users

2. WAN (wide area network)

   • Hardware needed to connect to WAN
   • disadvantages
     • unauthorised users can easily hack into what your doing
   • advantages
     • you can connect to something that is far away
   • a collection of networks are connected over a large geographical area(e.g. the internet)
   • ways to connect to a WAN