using ICT systems revision

using ICT systems revision

1. Advantages and disadvantages of networks

   • advantages...1. you can log onto any workstation. 2. everyone on the network can backup lost data because of central backups. 3. Downloads can be made from one computer and all computers can get it. 4. Anti-virus software is run centrally.
   • disadvantages... 1. if a virus is introduced to the network it will spread around all the workstations. 2. if the network fails or is damaged then no one can recover their work or folder etc.

2. Networks

   • A network is two or more computers connected together. So they are able to share resources and communicate.
   • L.A.N. Network... Means local area network. it is a small network covering a single site e.g. a home or a school. We use cables and Wi-Fi to connect
   • W.A.N. stands for wide area network. It covers awide geographical area e.g. cities or countries. It uses phone lines and satellites to connect