networks-hardware and commercial usage

networks-hardware and commercial usage

1. hardware

   • routers
   • switches
   • hubs

2. data transfer

   • metal wire
   • fibre optic cable
   • wireless

3. network interface card

   • prepares data for sending over a network
   • controls the flow of data

4. a hub

   • joins computers in a network
   • allows the connection of cables
   • allows sharing of files

5. a switch

   • looks where packets ofdata should go
   • reduces the number of packets

6. a router

   • can be wired or wireless
   • join several networks
   • connects several computers to the internet

7. gateways

   • lan to wan
   • two different networks together

8. bridges

   • lan to lan
   • joins the same networks together