Networks

Networks

1. Advantages

   • Files can easily be shared by other users
   • sharin devices such as printers can save money
   • Data can be shared

2. Disadvantages

   • The cost of cabling and setting up is high
   • A virus can spread through a network very quickly
   • Hackers may gain unauthorised access to files saved on a network

3. Topology

   • Buss network
     • Advantages
       • Easy to install and set up
       • cheap to install doesnt require cabels
       • If computer fails the network continues to work
     • Disadvantages
       • if the main cable fails or gets damaged the whole network will fail
       • speed of data is slow
   • Star network
     • Advantages
       • very reliable- if one cable devices fail then all others will continue to work
       • High performing no data collisions can occur
     • Disadvantages
       • Expensive to install
       • Extyra hardware required
       • if a hub or switch fails all devices connected to it will have no network connection
   • Ring network
     • Advantages
       • it can transfer data quickly
       • Cheap network to set up
     • Disadvantage
       • If the main cable fails or any devices is faulty then the whole network will fail

4. A file server

   • A device in which controls access to separatley stored files, as part of a multi user system

5. A client-server network

   • a host is any computer connected to a network

6. A peer to peer network

   • A peer to peer network is group of comptuers each of which acts as a node for sharing files whithin the group