networks

networks

1. pros

   • share rescorces/data
     • saves time
       • the login and usernames is the same on all computers
     • acces the same files on any of the computers
     • same availability on any of the computers
     • such as internet and printers
   • updates quicker

2. cons

   • lacks independance
   • poses security difficulties
   • allows for viruses and malware to spread faster
   • light policing usasge promotes negative acts
   • requires an efficient handler
   • requires an expensive set up

3. types of networks

   • lan
     • local area network
     • a network contained in a single geographicial location or organisation
   • wan
     • wide area networks
     • often consists of multiple lans
     • a network that spans over a large geographical area or multiple organisations

4. topology

   • bus
     • pro
       • cheap to install due to only one wire is needed
     • cons
       • their is a high of chance catastrophic failure since if that one wire brakes
       • high chance data collisions
       • the larger the network grows the slower it gets and the higher chance of collision
   • ring
     • pros
       • cheap
       • no collision (fast)
     • cons
       • their is a high of chance catastrophic failure
       • difficult to add new computers
   • star
     • pros
       • fast
       • easy to add computers to
       • low chance of failure

5. ip adress

   • means internet protocol
   • there are 4 billion iq adresss
   • homes and bisnesses have their own mini-network with their own ip adress

6. the internet

   • is a giant mesh
   • there are multiple different routes between multiple routers
   • it is imposible to brake
   • a cost is assigned to each connection
   • route fin

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