Question

Identify the parts X and Y in the block diagram of the generalised communication system shown in the figure.
           

A) Transducer and information source
B) Information source and transducer
C) Information source and communication channel
D) Communication channel and information source.

Answer 1

Hint: We need to understand the different steps involved in a communication transfer to analyse the methods by which an information is collected from the owner, converted to electrical signals and passed through the channel to reach the receiver.

Complete step by step solution:
We know that any form of communication requires a sender who has information to be sent to the receiver at the other end of the communication channel. Let us discuss the elements present in a communication process to identify the components X and Y in the figure.
         

Information source: The sender or the information source is the major element in the electronic communication where the message is formed which is to be sent to the receiver. It is the first element in the system.
Transmitter: It is the device which has mainly two functions. It should convert the sender’s message into the electronic form (acts as a transducer) and then let the electronic signal join the communication network.
Communication Channel: It is the medium in which all the signals from various transmitters are allowed to travel without mixing up to reach its particular receiver. The probability of noise intruding in the signal is high in this element.
Receiver: The end user or the receiver is the one who is meant to get the message. The receiver side also has to convert the electronic signal to the usable form.
Now, we understand the unknown elements in the given figure as –
X – Information source
Y – Communication channel

The correct answer is option C.

Note:
The electronic messages are used encrypted to ensure the safety and privacy of the sender and receiver. The sender and receiver possess very unique code for decrypting the messages they send and receive which is highly protected by the service providers.