Unit 1. Data Communications

Topics covered under this:
Multiplexing, Signaling, Encoding & Decoding, Error Detection & Recovery, Flow Control, Sliding Window, Congestion Management.

  • Analog and Digital communication together play a very important role in Data Communication Systems although digital communications have more advantages over analog.
  • A very common example of both analog and digital communication working together: two system connected over a public line using modems and the link between these modems is modulated by an analog signal.