Network Hardware

Network Hardware

1. Hardware

   • NIC(Network Interface Card) - allows a device to connect to a network
   • Switch - Connect devices to a LAN. Receive data from one device and transmit data to another device with the correct MAC address
   • Router - Transmits data to at least 2 networks. Direct data to their destination. Used in homes and offices to connect the LAN to the internet

2. Cables

   • Ethernet
     • Used to connect devices in a LAN. Examples: CAT 5e and CAT 6. Twisted pair cables – made from copper wires which are twisted to reduce interference
   • Coaxial
     • Made of single copper wire surrounded by plastic and metallic mesh to prevent outside interference. Examples: CAT 5e and CAT 6
   • Fibre Optic
     • Transmits data as light. Gives a high performance. Expensive. Does not suffer from interference and can transmit data over a long distance

3. Wireless

   • Use radio waves to transmit data.You need a WAP(Wireless Access Point) device – a switch that allows you to connect wirelessly

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