Describe the components of a digital communication system with a labelled diagram.

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A digital communication system has the following components in order: Source (origin of the signal, e.g. sound), Input Transducer (converts the signal into an electrical signal, e.g. a microphone), Encoder (compresses data into minimum bits), Modulator (converts data into analogue signal for the channel), Channel (medium carrying the signal), Demodulator (demodulates the received signal), Decoder (re-digitizes the signal, removing errors), Output Transducer (converts the decoded signal into the original physical form, e.g. a loudspeaker), and Output Signal (the final result, e.g. sound recreated at the receiver).