Networks

Networks

1. Hardware

   • Router
     • All of the devices can connect to a central point in a local area network.
     • Most routers can connect you to a wide area network.
   • Switch
     • So that all of the devices can connect to a central point on a local area network.
   • Ethernet Cable
     • So that you can connect your device to a router, switch or another computer.
   • Network interface card
     • Any device which connects to a LAN or a WAN must have a network interface card.
   • Wireless access point
     • They are used to connect portable devices to your local area network.
     • This is commonly known as a WiFi range extender.
   • Server
     • A sever is a powerful computer which controls the network.
   • Modem
     • A modem is used to connect you to a wide area network such as the Internet.
   • Peripherals
     • These are any devices which connect to your computer system.

2. Network types.

   • LAN
     • Devices that are connected together over a small geographical area.
     • Local area network
   • WAN
     • Networks which are connected together over a large geographical area.
     • Wide area network.
   • WPAN
     • Wireless personal area network

3. Keywords

   • Security
   • Range
   • Definition
   • Data transfer speed
   • Peripheral

4. Security

   • Firewall
     • It controls the programs that can receive and send data from your computer.
   • Anti Malware
     • It scans your computer's periodically for malware.
   • Passwords
     • Stops unauthorised users from accessing your account.
   • Encryption

5. Connection types

   • Wifi
     • Advantage
       • Its good for connecting portable devices to a LAN
     • Disadvantage
       • It has a limited range.
   • Ethernet
     • Advantage
       • Faster data transfer compared to data.