Network the basics

Network the basics

1. Network

   • 2 or more computers linked together to share resources

2. Shared resources

   • Hardware-
     • eg Printers
   • Software
     • Only installed on one computer
   • Data
     • Database files
     • Internet connection

3. Peer to peer network

   • Computers each have an equal status
   • All share resources
   • Only suitable for small/home networks
   • Only basic knowledge is needed
   • The more people that use it means that it slows down

4. Client server network

   • Network dependent on server
   • Programs stored on server and other computers can access
   • If server goes down it will not work

5. LANS

   • Local area connection
   • Smaller areas
   • Cheap to build and run
   • Located in a single building

6. WANS

   • Lots of different buildings and cities, countries etc.
   • Wide area networks
   • Expensive to build and run

7. Network Topology

   • Ring
     • Easy to add extra devices
   • Star
     • Higher cost large amounts of cabling needed
     • Fault tolerate- if one fails other do
   • Bus
     • Cost effective
     • Simple cable
     • Connected to share cable called backbone

8. Intranet- Private network

   • Extranet- Like intranet but allows other parties such as: customers and suppliers access

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