Computing revision

Computing revision

1. A computer network is lots of nodes grouped together.

2. W.A.N stands for wide area network

   • It is over a long space e.g. london to washington.

3. L.A.N stands for local area network

   • Its in the local area e.g. around a school.

4. The advantages of a computer network

   • Allows communication between workers or students
     • Allows data to be shared
       • Allows printers to be shared
         • Allows computers to be upgraded easier

5. The disadvantages with a computer network

   • Need a technician to look after it all
     • If the switch breaks everything break
       • Expensive to install
         • If one node gets a virus it can very quickly spread to all the others in the network