2. Sender
3. Receiver
4. Medium or communication channel
5. Encoder or decoder ( modem/ media converter)
6. Protocol
Sender->encoder<--message-->Decoder->Receiver
Now let's give a brief introduction to each of them.
Message: text, number, picture, sound , video, etc. can be a component of message
Sender: It is the transmitter or source. A sender can be a computer, telephone, or video camera
Receiver: It is also called sink. Human, computer, telephone set, printer or fax machine all are receivers.
Medium: It is the path or communication channel through which data is transmitted from one place to another either through wired or wireless.
Encoder and Decoder: An Encoder is a device that converts the active data signal into a coded message format. However, a Decoder performs inverse operation of the Encoder and thus converts the coded input into original data input.
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