Networks

Networks

1. Advantages

   • you can log into an computer, and still have your files.
   • you can print,use the internet and use some software of an computer.
   • you can work anywhere around the world.

2. Disadvantages

   • computers can easily be hacked or catch a virus.
   • computers cost a lot to run
   • if something goes wrong it can affect every computer

3. Types of networks

   • WAN - Wide Area Networks
   • LAN - Local Area Networks
   • BUS - all computers connects to central date line
   • IP Adress - computer Adress on network
   • Network A group of computer connected together
   • star - every computer connects to the centre

4. Topologys

   • star topologys - theres a switch thats in the middle. the posotives are there fast! there easy to add and the negatives are its all on the swich and is very expensive
   • bus topology - is a so called corridor with computers leading of it. The posotives are that its cheap and its easy to add to, the negatives are there are data collisions and catastrophic failure.
   • ring topology - is a circle of computers connected together. The posotives of this is there are no collisions and its cheap, the negatives are data leaks are a possible and catastrrophic failures.

5. IP Address

   • An IP Address is an unique value assigned to every computer on a network, used to identify it.
   • Messages on a network have an IP Address attached, which is how a computer know whether or not to keep the messages.
   • The internet is a huge network with dives that are possible to connect to it, its a network that is unique to every computer.