Daily Learning: Computer Networks – Internet & Data Communication


It is a distributed vast network that connect all type of devices together.

Data Communication

There are total 5 fundamental parts of any data communication –

  • Message – For a data communication one of the most important thing is message or the data.
  • Sender – The second thing is sender there must be a person or application which is sending the data.
  • Receiver – The third part obviously is the receiver there also must be a receiver in order to receive the data.
  • Transmission Medium – It is the way by which the data is going to be transferred. It can be many types for example – Wire, wireless etc.
  • Protocol – It is similar to human conversation some device send some message/request to another machine and it sends back reply as another message/request. In general protocol is a set of rule upon which devices communicate with each other.

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