Networks

Networks

1. Network types

   • WAN
     • Computers connected are geographically distant from each other
       • Connected using telephone networks and satellites
       • Business that have branches use WAN to connect computers to share data
   • LAN
     • Connects computers within a limited area
       • Usually in the same building
       • Direct links connecting the compuuters, using cabling or wireless
   • Client-server
     • One computer acts as a server all other computers are clients
       • Server computer is probably larger and more powerful and backing storage capacity
   • Peer-to-peer
     • All computers have equal status
     • Usually have similar specifications
     • Usually in an office environment

2. Network Topologies

   • Bus
     • Each computer is connected to a common cable
       • The speed of data communication is low
     • If one computer breaks the rest of the network is unaffected
   • Ring
   • Star