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Network

1. WAN- Wide Area Network

2. LAN- Local Area Network

3. Advantages of Networks

   • Sharing Devices such as printers saves money
   • Site linences are likely to be cheaper than buying several standalone linences
   • Files can easily be shares between users
   • Network users can communicate by email and instant messager
   • Security is good-users cannot see other users files unlike on standalone machines
   • Data is easy to backup as all the data is stored on the file server

4. Disadvantages of Networks

   • Purchasing the network cables and file server can be expensive
   • Managing a large network is complicated, requires training and a network manager usually needs to be employed
   • If the file server breaks down the files on the file server become inaccessible. email might still work if it is ona seperate server. the computer can still but used are isolated
   • Viruses can spread to other computers through a computer network

5. Star Network

   • Fault tolerate
   • Easy to reconfigure
   • More expensive than the Bus Network

6. Bus Network

   • Cheap
   • Easy to install
   • Entire Network
   • Difficult to reconfigure

7. Ring Network

   • Efficient
   • Easy to install
   • Very expensive

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