Networks - Hardware and Commercial usage

Networks - Hardware and Commercial usage

1. Consists of ...

   • Hardware/communication devices
     • Routers
     • Switches
     • Hubs
   • Network software
   • Data transfer media - wires
     • Fibre optic cable
     • Metal
     • Metal wire
     • Medium/methods where the data is transferred in a network

2. Communication Devices

   • Network interface card
     • Prepares data for sending over the network
     • Send the data
     • Controls the flow of data
   • Hub
     • Join computers in a network
     • Allows the connections of the cables
     • The sharing of files and internet access
   • Switch
     • More intelligent from a hub
     • Packet of data to decide where it should go
     • Reduce the number of packets of data and speed up data
   • Router
     • wired/wireless
     • Join several networks together
     • Connect several computers in the home to the internet

3. Network Software

   • Network Operating Systems
     • Specialist system
   • Network Management software
     • Helps network manager run network

4. POS

   • Point of sale systems
     • Pay for your goods
     • Automatically record stock levels and track sales
   • Hardware
     • Bar code reader
     • Keyboard
     • Touch Screens
     • Swipe card readers
     • Chip