connectivity

connectivity

1. deep sea cables

   • the most connections are in ammerica- europe and america-china
     • There are many connections beacause many similar interests and business
   • different colours show direction of flow
   • placed close to shore and shallow areas

2. bandwith

   • is also the amount of data that can be transmitted in a fixed amount of time
   • characterized as network bandwidth, data bandwidth, or digital bandwidth

3. connection speed

   • speed that data is transferred between your device and the internet
   • two types of connection speed
     • Download speed or receiving speed means the rate that information travels from the internet to your device
       • viewing a web page
       • downloading a program
       • or recieving an email
     • Upload speed or send speed means the rate that information travels from your device to the internet
       • sending an email
       • at school upload is higher than download

4. Broadband

   • broadband is wide bandwidth data transmission which transports multiple signals and traffic types

5. media used for connection

   • fibre optics
     • expensive
       • very expensive to install
         • delicate
     • a much greater bandwidth
   • coxial cable
     • advantages
       • sufficient frequency range to support multiple channels
     • disadvantages:
       • It is bulky.
       • It is expensive to install for longer distances due to its thickness and stiffness.
       • As single cable is used for signal transmission across the entire network, in case of failure in one cable the entire network will be do
   • Twisted pair
     • advantages
   • copper cables
     • cheap
     • not that fast
     • expensive

6. wireless

   • cheap because no cables
   • easy to set up
   • link devieces
   • access everything anywhere
   • less secure than cables
     • there may be interferences
   • slower

7. buffering

   • an area of memory used for temporary storage data when a program or hardware device needs an uninterrupted flow of information

8. quiz answers

   • internet providers give priority to downloading because most users spend more time downloading