network

network

1. Allows you to share files

   • can share resources
     • can share logins

2. key words,bus,ip address, lan, wan, topology, star, ring.

   • lan- local area network
     • wan- wide area network

3. advantages

4. disadvantages

   • They are exspensive to set up
     • increased risk of all computers getting a virus

5. bus

   • is the network of wich the devices are connected
     • it is simple to use but cant support large networks

6. ring is a type of local area network

   • it cant support many devices

7. star is what every device in the network is connected to a central node

8. ip adresses

   • ip Internet protocol address
     • The IP Address is unique value assigned to each computer on a network
   • Each IP address on a network must be unique
     • Computers on a network also need an address to identify them
   • When the format of IP Addresses were decided in 1983, 4 billion addresses seemed more than enough

9. Internet

   • Data is split into small chunks called packets Each packet is sent along the lowest cost route The packets are re-assembled on the other side
     • Route-finding algorithms are used to find the lowest cost route between two nodes

10. mesh topology

    • The layout of these nodes is called a Mesh Topology In a mesh topology, there is excellent resilience to outages as messages can take many different routes to reach a destination If any node or connection becomes unavailable, the message can simply take a different route
      • Rather than using a star, bus or ring topology, each node is connected to one or more other nodes in an ad-hoc manner