ANALOG AND DIGITAL

Data can be analog or digital. The term analog data refers to information that is continuous; digital data refers to information that has discrete states. Analog data take on continuous values. Digital data take on discrete values.

Topics discussed in this section:


Analog and Digital Data
Analog and Digital Signals
Periodic and Nonperiodic Signals

Note:
 Data can be analog or digital. 
Analog data are continuous and take continuous values.
Digital data have discrete states and take discrete values.