networks

networks

1. hardware

   • router
     • they allow you to have internet connection
   • ethernet cable
     • helps you to connect your computer to the router
   • switch
     • helps your devices connect to a central point on a LAN
   • network interface card
     • connects your device to a switch router or wireless access point
   • wireless access point
     • commonly known as a WiFi extender - extends your WiFi
   • server
     • really powerful computer
   • modem
     • used to connect you to a WAN
   • peripherals
     • all devices connected to your computer system

2. network types

   • LAN
     • devices that are connected over a small geographical area
   • WPAN
     • stands for wireless personal area network
   • WAN
     • all networks connected to a large area network

3. keywords

   • security
     • how something is protected
   • range
     • how far something can reach
   • peripheral
     • something that is connected to LAN
   • data transfer speed

4. security

   • firewall
     • stops intruders from receiving data packets
   • anti-malware
     • scans device for any viruses or bugs
       • if they find anything then they ask is you trust it or if you want to delete it
   • passwords
     • stop intruders from accessing files or devices
   • encryption
     • scrambles data packets so that unauthorised people form reading them

5. connection types

   • ethernet cable
     • LAN
     • advantage
       • has a range of 100 meters
     • disadvantage
       • more expensive than using WiFi connection
   • WIFI
     • LAN
     • advantage
     • disadvantage
   • bluetooth
     • WPAN
     • disadvantage
       • can be hacked easily
     • advantage
       • can be paired to 7 devices at once
   • GPRS
     • WAN
     • disdvantage
       • can be expensive
     • advantage
       • can be used on the move