Info is generated by a source, transformed into an electromagnetic signal, applied to a transmission medium and propagated from a transmitter to a receiver.
Receiver recovers the info from the signal to reproduce the original info.
Represents binary 1s and 0s. Periodic signal - same signal pattern repeats over time. B. Frequency-Domain Concepts a. The greater the bandwidth, the higher the info-carrying capacity. Any digital waveform will have infinite bandwidth.