Definition: The communication is a dynamic process that begins with the conceptualizing of ideas by the sender who then transmits the message through a channel to the receiver, who in turn gives the feedback in the form of some message or signal within the given time frame.
Communication is a process which involves transmission of information from one point to another through a succession of processes. Effective communication is when the message conveyed by the sender is understood by the receiver in exactly the same way as it was intended. There are basically two modes of communication:
- Point-to-Point: A point-to-point connection refers to a communications connection between two communication endpoints or nodes. An example is a telephone call, in which one telephone is connected with one other, and what is said by one caller can only be heard by the other.
- Broadcasting: A broadcast communication network is a communication network which uses broadcasting for communication between its nodes. They take messages from a single sender and transmit to all endpoints on the network. For example, Radio, Television, etc.
There are three basic element of communication system namely transmitter, channel and reciever. The simple block diagram for communication system is given below:
Different blocks in block diagram of communication system are discussed below:
- Sender: The sender or the communicator is the person who initiates the conversation and has conceptualized the idea that he intends to convey it to others.
- Encoding: The sender begins with the encoding process wherein he uses certain words or non-verbal methods such as symbols, signs, body gestures, etc. to translate the information into a message. The sender’s knowledge, skills, perception, background, competencies, etc. has a great impact on the success of the message.
- Message: Once the encoding is finished, the sender gets the message that he intends to convey. The message can be written, oral, symbolic or non-verbal such as body gestures, silence, sounds, etc. or any other signal that triggers the response of a receiver.
- Communication Channel: The Sender chooses the medium through which he wants to convey his message to the recipient. It must be selected carefully in order to make the message effective and correctly interpreted by the recipient. The choice of medium depends on the interpersonal relationships between the sender and the receiver and also on the urgency of the message being sent. Oral, virtual, written, sound, gesture, etc. are some of the commonly used communication mediums.
- Receiver: The receiver is the person for whom the message is intended or targeted. He tries to comprehend it in the best possible manner such that the communication objective is attained. The degree to which the receiver decodes the message depends on his knowledge of the subject matter, experience, trust and relationship with the sender.
- Decoding: Here, the receiver interprets the sender’s message and tries to understand it in the best possible manner. An effective communication occurs only if the receiver understands the message in exactly the same way as it was intended by the sender.
- Feedback: The Feedback is the final step of the process that ensures the receiver has received the message and interpreted it correctly as it was intended by the sender. It increases the effectiveness of the communication as it permits the sender to know the efficacy of his message. The response of the receiver can be verbal or non-verbal.
- Noise: Noise is the unwanted disturbance present in communication which deteriorate’s the quality of message signal sent and decreases the quality of communication process. Noise can be present at any stage of communication processes.