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Networking - Coggle Diagram

- - - - All devices that connect to a network require a Network Interface Card (NIC). The NIC stores the information that identifies an individual device on a network, the MAC address. Each NIC has it's own unique, and unchangeable MAC address (it is however possible to spoof a MAC address). NIC can be wired or wireless.
    - - A router is the device that we may most often recognize as most people have broadband. As mentioned before it is the connection between a Local Area Network and a Wide Area Network and is often has other components built into it. It is responsible for forwarding data packets (more on this later) between different computer networks. The packets are forwarded between routers using various protocols including the Internet Protocol (IP) which provides an address for each of the routers so that it can be found. Most likely in your home network the only device that has a static IP address is the router- this is so that it can be found by other routers on the internet. Each of the devices connected to your router will most likely have a dynamic IP address that changes, your devices will be assigned these by your router which recognises the device by it's MAC address.
    - - A router is the device that we may most often recognise as most people have broadband. As mentioned before it is the connection between a Local Area Network and a Wide Area Network and is often has other components built into it. It is responsible for forwarding data packets (more on this later) between different computer networks. The packets are forwarded between routers using various protocols including the Internet Protocol (IP) which provides an address for each of the routers so that it can be found. Most likely in your home network the only device that has a static IP address is the router- this is so that it can be found by other routers on the internet. Each of the devices connected to your router will most likely have a dynamic IP address that changes, your devices will be assigned these by your router which recognises the device by it's MAC address.
    - - provides a means to allow wireless devices to access a network. The wireless access points themselves are physically attached to cables to the network. The WAP broadcasts radio signals from the network and these are received by the Wireless network card the reverse happens to allow a wireless device to send data to a network
  - - - client server
        
        security is controlled centrally
        
        Backup is done centrally from the server
        
        a central backing store that is available to all computers
        
        can support thousands of users and can easily grow
        
        all users are reliant on the central server- if this fails no-one can access all of the recourses
      - peer-to-peer
        
        security is not centrally controlled
        
        backup has to be performed on each computer on the network
        
        storage facilities are distributed accross all the computers
        
        no centeral server
        
        easy to set up for small businesses
  - - - covers a large geographical location
      - large organizations make use of the WAN network
      - using WAN makes it possible for recourses to be shared across a large area
    - - small geographical location
      - they consist of single sites such as schools or homes
      - the infrastructure is owned by the company or individual. they are responsible for the issues that occur on the network
- - - - blutooth
      - WIFI
    - - ethernet