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BASIC COMMUNICATION SYSTEMS?

By Admin on

WHAT IS COMMUNICATION?

Communication is the activity of conveying meaningful information. Communication requires a sender, a message, and an intended recipient, although the receiver need not be present or aware of the sender's intent to communicate at the time of communication; thus communication can occur across vast distances in time and space. The communication process is complete once the receiver has understood the message of the sender.

TYPES OF COMMUNICATION:

Wired communication

Wired technology has been around for ages. It first became popular in the early 1900's with the introduction of the telephone network.

The use of wired connections spawned the creation of other technologies like multiplexing and SONET.

Using physical wires means that electronic signals are being transmitted over a metal conductor.

Currently, this is the most reliable way to transmitting/receiving data or voice on the planet.

Wireless communication

Wireless communication is the transfer of information over a distance without the use of electrical conductors or "wires".

The distances involved may be short (a few meters as in television remote control) or long (thousands or millions of kilometers for radio communications).

Wireless communication is generally considered to be a branch of telecommunications.


Source: A source is from which the information is taken.

Destination: A destination is at which the information is received.

Transmitter: Transmitter sends the information that is received from the source into the channel by modulating it.

Channel: A channel is the medium in which the modulated signal is sent from the transmitter is propagated to the receiver.

Receiver: Receiver gets the modulated signal then it demodulates it then sends the information to the destination.


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