Monday, 4 April 2016

CHAPTER 2 DATA COMMUNICATION



Type of Signal


  1. Analog Signal- Analog signal is a continuous signal which represents physical measurements.
  2. Digital SignalDigital signals are discrete time signals generated by digital modulation.

Data Transmissions
There are two types of data transmissions modes:

  1. Serial transmissions- All the bits transmited on a single line
  2. Parallel transmissions- Seperate line for each bit




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