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Networks

1. Communication devices: A router

   • Can be wired or wireless
   • Is used to join several networks together
   • It can be used to connect several computers at home

2. Network software

   • Network operating system - designed for networks
   • Network management
     • Used to help a network manger run a network by keeping track of software

3. POS- Point of sale system

   • Where you pay for goods
   • Can record automatically

4. POS- Hardware

   • Bar code reader
   • Keyboard
   • Touch Screens
   • Swipe card readers
   • Chip and pin readers

5. Pos networks

   • Payment systems
   • Loyalty systems
   • Automatic stock control systems

6. Network advantages

   • You can share hardwares for example printers
   • Software installed in one place so not needed on every system

7. Network Disadvatages

   • Expansive
   • Has security problems and viruses can get on the sysyem
   • Has breakdown problems