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Networks

1. Examples of Wifi

   • People now need mobile phones to access their networks, email accounts at wireless nodes in an airport
   • Doctors at the scene of an accident can access paitent records
   • Advantages
     • Allows inexpensive LANS to be set up without cables
     • Freedom to work anywhere
     • Ideal for old listed buildings where cables could not be installed
     • Health and safety - tidier work area
   • Disadvantages
     • Power consumption is high
     • Health problems using wifi
     • Security issues
     • Wifi networks have a limited range

2. Advantages of Broadband

   • Faster connection when you want to be online
   • Saves telephone bills
   • Faster downloading of programs, emails, songs, graphics, animations, video clips and attachments
   • Real time services such as webcams and radio
   • Work from home with high speed access

3. Disadvantages of Broadband

   • higher subscription costs - monthly packages
   • Broadband may not be available in certain areas

4. Software Components of a network

   • User accounts and logs
     • each user must have an account with a username and password
     • The account will have permissions (access rights to files and data such as read only)