hardware and commercial usage

hardware and commercial usage

1. hardware/communication devices

   • routers
   • switches
   • hubs

2. data transfer madia

   • metal wire
   • fibre optic cable
   • wireless

3. a network interface card

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

4. a hub

   • is used to join computers in a network
   • allows the connection of cables
   • allows the sharing of files and internet access

5. a switch

   • is similar to a hub but more intelligent
   • can look at a packet of data to decide where it should go
   • reduces the number of packets of data on a network, which speeds it up

6. a router

   • can be wired or wireless
   • is used to join several networks together
   • is often used to connect several computers in the home to the lnternet

7. network software

   • network operating systems-specialist operating systems designed specifically for networks

8. pos-point of sale

   • where you pay for your good at a shop/store

9. hardware

   • touch screens
   • swipe card readers
   • chip and pin readers

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