Networking

Networking

1. Computer Networks

   • A group of computers connected that are used to share resources.
   • Local Area Networks
     • A network which covers a small geographical area.
   • Wide Area Network
     • A network which covers a large geographical area.

2. Factors That Affect a Network

   • Bandwidth
     • The rate at which information (data) can be sent through a network.
   • Latency
     • How long it takes data to get from one computer to another.
   • Error Rates
     • The amount of corrupted bits (or missing packets).

3. Network Topology's

   • Network topology is a group of devices connected together to share data and how they are connected/arranged.
   • Mesh Toopolgy
     • All devices are connected to every single other device.
       • Advantages -Fast as wired. -Faults are found easily -If one device is broken the others can still connect
       • Disadvantages -Too many wires, could get tangled -Hard to setup -Lots of money -Can have collisions
   • Star topology
     • All devices are connected to a switch.
     • Advantages -Less wires -They're all connected to one thing
     • Disadvantages -Expensive -If the switch fails everything in the topology does

4. Networking Hardware

   • Hubs
   • Switches
   • Routers

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